# Index of physics articles (C)

The index of physics articles is split into multiple pages due to its size.
To navigate by individual letter use the table of contents below.

## Index of physics articles

* 0–9
* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z

## C

* C*-algebra
* C-ROT gate
* C-number
* C-symmetry
* C-theorem
* C. B. Collins
* C. Bruce Tarter
* C. Chapin Cutler
* C. E. Wynn-Williams
* C. F. Powell
* C. K. Raju
* C. N. Yang Institute for Theoretical Physics
* C. Peter Flynn
* C. R. Hagen
* C. T. K. Chari
* C. Thomas Elliott
* C. V. Boys
* C. V. Raman
* CACTUS
* CADPAC
* CANFLEX
* CAREM
* CASTEP
* CASTOR calorimeter
* CCR and CAR algebras
* CDHS experiment
* CEBAF On-line Data Acquisition
* CENBOL
* CERN
* CERN Axion Solar Telescope
* CERN Courier
* CERN Neutrinos to Gran Sasso
* CERN openlab
* CERN Program Library
* CFD-ACE+
* CFD-DEM model
* CFX
* CGNS
* CGh physics
* CHARMM
* CHICOS
* CHSH inequality
* CIDNP
* CKM Matrix
* CLAS detector
* CLD chromophore
* CLEO (particle detector)
* CLHEP
* CLIO
* CLOUD
* CMBFAST
* CMB cold spot
* CNDO/2
* CNO cycle
* COGEMA La Hague site
* COMPASS experiment
* CORSIKA
* CP-parity
* CPT symmetry
* CP violation
* CR-39
* CRAC-II
* CRC Handbook of Chemistry and Physics
* CROCUS
* CRYSIS
* CSA (database company)
* CTX (explosive-detection device)
* CUSB
* C band (IEEE)
* C band (infrared)
* C band (NATO)
* C parity
* Cabbibo angle
* Cabibbo–Kobayashi–Maskawa matrix
* Cactus Framework
* Cadabra (computer program)
* Cadarache
* Caesar Saloma
* Cahn–Hilliard equation
* Calabi flow
* Calabi–Yau four-fold
* Calabi–Yau manifold
* Calandria (disambiguation), three different kinds of physics equipment
* Calculating Space
* Caldeira-Leggett model
* Calefaction
* Callan–Symanzik equation
* Callendar–Van Dusen equation
* Calogero conjecture
* Caloric theory
* Calorie
* Calorimeter (particle physics)
* Calorimeter constant
* Calorimetry
* Caloron
* Calutron
* Calvin Souther Fuller
* Camassa–Holm equation
* Camber (aerodynamics)
* Camber thrust
* Cambridge Structural Database
* Cameron Wright (weapons scientist)
* Campbell diagram
* Canadian Association of Physicists
* Canadian Geophysical Union
* Canadian Journal of Physics
* Canadian Light Source
* Canadian Neutron Beam Centre
* Canadian Penning Trap Mass Spectrometer
* Canadian Synchrotron Radiation Facility
* Canard (aeronautics)
* Candoluminescence
* Canfranc Underground Laboratory
* Canonical commutation relation
* Canonical coordinates
* Canonical distribution
* Canonical ensemble
* Canonical probability distribution
* Canonical quantization
* Canonical quantum gravity
* Canonical transformation
* Capacitance
* Capacitance electroscope
* Capacitance voltage profiling
* Capacitively coupled plasma
* Capacitor analogy
* Capillary action
* Capillary length
* Capillary number
* Capillary pressure
* Capillary surface
* Capillary wave
* Capture orbit
* Carbon-13 NMR
* Carbon-burning process
* Carbon (journal)
* Carbon detonation
* Carbon dioxide laser
* Carbon nanotube
* Carbon nanotube quantum dot
* Cardinal point (optics)
* Carel S. Scholten
* Carey Foster
* Cargill Gilston Knott
* Carl-Gunne Fälthammar
* Carl-Gustaf Rossby
* Carl Anton Bjerknes
* Carl Auer von Welsbach
* Carl August von Steinheil
* Carl David Anderson
* Carl David Tolmé Runge
* Carl Eckart
* Carl Friedrich Gauss
* Carl Friedrich von Weizsäcker
* Carl H. Brans
* Carl Hermann
* Carl Hodges
* Carl Kellner (optician)
* Carl M. Bender
* Carl Nordling
* Carl Pulfrich
* Carl Ramsauer
* Carl Sagan
* Carl Størmer
* Carl Wieman
* Carl Wilhelm Oseen
* Carlo Alberto Castigliano
* Carlo Beenakker
* Carlo Marangoni
* Carlo Matteucci
* Carlo Rovelli
* Carlo Rubbia
* Carlos Chagas Filho
* Carlos E.M. Wagner
* Carlos Frenk
* Carlton M. Caves
* Carlton R. Pennypacker
* Carminati–McLenaghan invariants
* Carnot's theorem (thermodynamics)
* Carnot cycle
* Carnot heat engine
* Carolin Crawford
* Carolinium
* Carolyne M. Van Vliet
* Carreau fluid
* Carrier-to-noise ratio
* Carrier-to-receiver noise density
* Carrier generation and recombination
* Carroll's paradox
* Carroll Alley
* Cartan formalism (physics)
* Cartan–Karlhede algorithm
* Carter constant
* Cartoon physics
* Car–Parrinello method
* Car–Parrinello molecular dynamics
* Cascading gauge theory
* Casimir effect
* Casimir machine
* Caspar Isenkrahe
* Cassie's law
* Cassini's laws
* Cat state
* Catadioptric sensor
* Catapult effect
* Catastrophic optical damage
* Catherine Bréchignac
* Cathodoluminescence
* Cathodoluminescence microscope
* Catoptrics
* Cauchy's equation
* Cauchy horizon
* Cauchy number
* Cauchy surface
* Cauchy–Born rule
* Causal dynamical triangulation
* Causal patch
* Causal perturbation theory
* Causal sets
* Causal structure
* Causal system
* Causality
* Causality (physics)
* Causality conditions
* Caustic (optics)
* Cavallo's multiplier
* Cavendish Professor of Physics
* Cavendish experiment
* Cavitation
* Cavity method
* Cavity quantum electrodynamics
* Cavity resonator
* Cebeci–Smith model
* Cecil Howard Green
* Cecil Reginald Burch
* Cees Dekker
* Ceiling (aircraft)
* Ceiling level
* Celestial spheres
* Celor lens
* Centauro event
* Center-of-momentum frame
* Center for Integrated Plasma Studies
* Center for Nanoscale Materials
* Center frequency
* Center manifold
* Center of Applied Space Technology and Microgravity
* Center of mass
* Center of mass coordinates
* Center of momentum
* Center of percussion
* Center of pressure (fluid mechanics)
* Center vortex
* Centers of gravity in non-uniform fields
* Centimetre of water
* Central European Journal of Physics
* Central body
* Central charge
* Central field approximation
* Central force
* Central potential
* Centre for High Energy Physics (University of the Punjab)
* Centre for Quantum Technologies
* Centre for Underground Physics in Pyhäsalmi
* Centre line thrust
* Centrifugal compressor
* Centrifugal force
* Centrifugal force (rotating reference frame)
* Centrifugal pump
* Centrifuge
* Centripetal force
* Centro Brasileiro de Pesquisas Físicas
* Centrosymmetry
* Cepheid
* Cepheid variable
* Cepheid variables
* Cepheids
* Ceramic flux
* Ceramic petrography
* Ceramic petrology
* Chad Orzel
* Chain reaction
* Chalcogenide glass
* Chalk River Laboratories
* Chamberlin–Moulton planetesimal hypothesis
* Chameleon particle
* Champagne flow
* Chandra X-ray Observatory
* Chandrasekhar limit
* Chandre Dharma-wardana
* Change of decay rate
* Changes of the length of day
* Channel noise level
* Channelling (physics)
* Chan–Paton factor
* Chao Tang
* Chaos: Making a New Science
* Chaos (physics)
* Chaos in optical systems
* Chaos theory
* Chaotic Inflation theory
* Chaplygin gas
* Chapman function
* Chapman–Enskog theory
* Chapman–Jouguet condition
* Characteristic admittance
* Characteristic impedance
* Characteristic mode analysis
* Characteristic number (fluid dynamics)
* Characteristic state function
* Characteristic time
* Charge-exchange ionization
* Charge-induced voltage alteration
* Charge (physics)
* Charge carrier
* Charge carrier density
* Charge conservation
* Charge contrast imaging
* Charge density
* Charge invariance
* Charge ordering
* Charge qubit
* Charge radius
* Charge transfer insulators
* Charged black hole
* Charged current
* Charged particle
* Charged particle beam
* Chargino
* Charles's law
* Charles-Augustin de Coulomb
* Charles Archambeau
* Charles Bruce (physicist)
* Charles Cagniard de la Tour
* Charles Chree
* Charles Christian Lauritsen
* Charles Critchfield
* Charles Drummond Ellis
* Charles Fabry
* Charles Francis Richter
* Charles Frank (physicist)
* Charles Galton Darwin
* Charles Glover Barkla
* Charles Gorrie Wynne
* Charles Grafton Page
* Charles Greeley Abbot
* Charles Guillaume Alexandre Bourgeois
* Charles H. Henry
* Charles Haldat
* Charles Hard Townes
* Charles J. Joachain
* Charles K. Kao
* Charles Kittel
* Charles L. Bennett
* Charles M. Falco
* Charles M. Herzfeld
* Charles M. Newman
* Charles Panati
* Charles R. Bentley
* Charles R. Doering
* Charles S. Peskin
* Charles Soret
* Charles Tahan
* Charles Taylor (physicist)
* Charles Thomson Rees Wilson
* Charles Thorn
* Charles Tomlinson (scientist)
* Charles W. Misner
* Charles Wheatstone
* Charles Wylie
* Charles Édouard Guillaume
* Charlotte Froese Fischer
* Charlotte Riefenstahl
* Charm (quantum number)
* Charm quark
* Charmed Lambda baryon
* Charmed baryons
* Charmed eta meson
* Charmness
* Charpy impact test
* Chart datum
* Chartered Physicist
* Chasman–Green lattice
* Chaudhry Abdul Majeed
* Cheerios effect
* Cheick Modibo Diarra
* Chemi-ionization
* Chemical Physics Letters
* Chemical Vapor Deposition (journal)
* Chemical affinity
* Chemical beam epitaxy
* Chemical force microscopy
* Chemical ionization
* Chemical laser
* Chemical oxygen iodine laser
* Chemical physics
* Chemical potential
* Chemical shift
* Chemical thermodynamics
* Chemiluminescence
* Chen Jiaer
* Chen Ning Yang
* Chen Yung-Jui
* Cheng Chemin
* Cheng Kaijia
* Cherenkov Array at Themis
* Cherenkov detector
* Cherenkov radiation
* Chern–Simons theory
* Cherry A. Murray
* Chester Carlson
* Chetayev instability theorem
* Cheuk-Yin Wong
* Chi-Wang Shu
* Chi b (3P)
* Chia-Chiao Lin
* Chia-Hsiung Tze
* Chia-Shun Yih
* Chiang C. Mei
* Chiara Nappi
* Chicago Air Shower Array
* Chicago Pile-1
* Chien-Shiung Wu
* Chih-Kung Jen
* Child's law
* Chinese Journal of Physics
* Chinese Optics Letters
* Chip-scale atomic clock
* Chiral Potts curve
* Chiral anomaly
* Chiral color
* Chiral gauge theory
* Chiral model
* Chiral perturbation theory
* Chiral superfield
* Chiral symmetry
* Chiral symmetry breaking
* Chirality (electromagnetism)
* Chirality (physics)
* Chirped pulse amplification
* Chladni's law
* Chlorine-37
* Choke (electronics)
* Choked flow
* Chooz (experiment)
* Chord (aircraft)
* Chris Adami
* Chris Hull
* Chris J. L. Doran
* Chris Quigg
* Chris Sachrajda
* Chris Wallace (computer scientist)
* Christer Fuglesang
* Christiaan Huygens
* Christian August Hausen
* Christian Christiansen (physicist)
* Christian Doppler
* Christian Gerthsen
* Christian Heinrich Pfaff
* Christian Ludwig Gerling
* Christian Møller
* Christian T. Elvey
* Christian Wissel
* Christine Sutton
* Christoffel symbols
* Christofilos Effect
* Christoph Cremer
* Christoph Helmut Keitel
* Christoph Scheiner
* Christopher Aikman
* Christopher Bishop
* Christopher Hansteen
* Christopher Isham
* Christopher J. Hardy
* Christopher Jargocki
* Christopher Llewellyn Smith
* Christopher Polhem
* Christopher Stubbs
* Christopher T. Hill
* Christopher T. Russell
* Christopher Wren
* Chromatic aberration
* Chromatic dispersion
* Chromosphere
* Chromo–Weibel instability
* Chronology of the universe
* Chronology protection conjecture
* Chronon
* Chung-Yao Chao
* Churchill–Bernstein equation
* Chézy formula
* Circuit noise level
* Circuit quantum electrodynamics
* Circuit theory
* Circular dichroism
* Circular motion
* Circular orbit
* Circular polarization
* Circular polarization in nature
* Circular polarization of starlight
* Circulation (fluid dynamics)
* Circulation control wing
* Circumhorizontal arc
* Circumscribed halo
* Circumzenithal arc
* Claire F. Gmachl
* Clamper (electronics)
* Clapotis
* Clarence Allen (geologist)
* Clarence Zener
* Clarendon Laboratory
* Clarity meter
* Clark Blanchard Millikan
* Classical-map hypernetted-chain method
* Classical Cepheid
* Classical Cepheid variable
* Classical Cepheids
* Classical Heisenberg model
* Classical Mechanics (book)
* Classical XY model
* Classical and Quantum Gravity
* Classical central-force problem
* Classical electromagnetism
* Classical electromagnetism and special relativity
* Classical electron radius
* Classical field theory
* Classical limit
* Classical mechanics
* Classical optics
* Classical physics
* Classical scaling dimension
* Classical theories of gravitation
* Classical theory
* Classical thermodynamics
* Classical treatment of tensors
* Classical unified field theories
* Classification of electromagnetic fields
* Claud E. Cleeton
* Claude-Auguste Lamy
* Claude-Louis Navier
* Claude Cohen-Tannoudji
* Claude Pouillet
* Claude R. Canizares
* Claude Wendell Horton, Jr.
* Claude Wendell Horton, Sr.
* Claudia Alexander
* Claudio Bunster
* Clausius theorem
* Clausius–Clapeyron relation
* Clausius–Duhem inequality
* Clean And Environmentally Safe Advanced Reactor
* Clearing factor
* Clebsch–Gordan coefficients
* Clemens C. J. Roothaan
* Clemens Timpler
* Clement John Tranter
* Clifford Berry
* Clifford Martin Will
* Clifford Shull
* Clifford Truesdell
* Clifford Victor Johnson
* Clifford analysis
* Climate of Uranus
* Clinical biophysics
* Clint Sprott
* Clinton Davisson
* Cloaking device
* Cloaking device metamaterial
* Cloaking device metamaterials
* Cloaking devices metamaterial
* Cloaking devices metamaterials
* Cloaking metamaterial
* Cloaking metamaterials
* Clock hypothesis
* Clockwork universe theory
* Close coupling
* Close-packing of equal spheres
* Closed system
* Closed timelike curve
* Closed wing
* Cloud chamber
* Cloud condensation nuclei
* Cloud drop effective radius
* Clover (detector)
* Cluster (physics)
* Cluster decay
* Cluster decomposition theorem
* Clyde Cowan
* Clyde Wiegand
* Cnoidal wave
* Coandă effect
* Coaxial rotors
* Cobra probe
* Cockcroft Institute
* Cockcroft–Walton generator
* Code Saturne
* Code V
* Codex Arundel
* Coefficient of friction
* Coefficient of performance
* Coefficient of restitution
* Coefficient of thermal expansion
* Coefficients of potential
* Coercivity
* Coffee ring
* Coffin corner (aviation)
* Coherence (physics)
* Coherence length
* Coherence theory (optics)
* Coherence time
* Coherent backscattering
* Coherent control
* Coherent information
* Coherent perfect absorber
* Coherent potential approximation
* Coherent spectroscopy
* Coherent states
* Cohesion (chemistry)
* Coincidence circuit
* Coincidence rangefinder
* Cold
* Cold Big Bang
* Cold dark matter
* Cold fission
* Cold fusion
* Cold rubber
* Cold trap
* Cold trap (astronomy)
* Cold vapour atomic fluorescence spectroscopy
* Coleman–Mandula theorem
* Coleman–Weinberg potential
* Cole–Cole equation
* Colin Franklin (engineer)
* Colin Webb (physicist)
* Collective diffusion
* Collective dose
* Collective excitation
* Collective excitations
* Collider
* Collider Detector at Fermilab
* Colligative properties
* Collimated light
* Collimating lens
* Collimator
* Collision
* Collision-induced dissociation
* Collision cascade
* Collision detection
* Collision response
* Colloid
* Colloid and Polymer Science
* Colloid vibration current
* Color charge
* Color confinement
* Color glass condensate
* Color superconductivity
* Colored-particle-in-cell
* Colorimeter (chemistry)
* Colorimetry
* Colors of noise
* Color–color diagram
* Color–flavor locking
* Colossal magnetoresistance
* Columnar phase
* Coma (optics)
* Combination tone
* Combinatorics and physics
* Combined RF trap
* Combined gas law
* Combustibility
* Committed dose
* Committed dose equivalent
* Committed effective dose equivalent
* Committee on the Safety of Nuclear Installations
* Common beta emitters
* Communicating vessels
* Communication physics
* Communications in Mathematical Physics
* Commutator (electric)
* Comoving distance
* CompHEP
* Compact Linear Collider
* Compact Muon Solenoid
* Compact dimension
* Compact star
* Compactification (physics)
* Compaction simulation
* Comparison of software for molecular mechanics modeling
* Compatibility (mechanics)
* Complementarity (physics)
* Complementary experiments
* Complete set of commuting observables
* Complex beam parameter
* Complex circuit
* Complex dynamics
* Complex fluids
* Complex harmonic motion
* Complex lamellar vector field
* Component (thermodynamics)
* Composite fermion
* Composite field
* Composite gravity
* Composite particle
* Compressed fluid
* Compressed magnetic flux generator
* Compressibility
* Compressibility factor
* Compressible flow
* Compression (physical)
* Compression lift
* Compton Gamma Ray Observatory
* Compton scattering
* Compton wavelength
* Compton–Getting effect
* Computational Materials Science
* Computational Science & Discovery
* Computational aeroacoustics
* Computational chemical methods in solid-state physics
* Computational electromagnetics
* Computational fluid dynamics
* Computational geophysics
* Computational magnetohydrodynamics
* Computational physics
* Computed radiography
* Computed tomography laser mammography
* Computer Automated Measurement and Control
* Computer Physics Communications
* Comstock Prize in Physics
* Concentric tube heat exchanger
* Conceptual physics
* Concurrence (quantum computing)
* Concurrence principle
* Condensation
* Condensation (aerosol dynamics)
* Condensed Matter
* Condensed matter physics
* Conditional quantum entropy
* Conductance quantum
* Conduction band
* Conductive coupling
* Conductivity (electrolytic)
* Conductivity of transparency
* Conductor gallop
* Cone beam computed tomography
* Configuration interaction
* Configuration space
* Configuration state function
* Confocal microscopy
* Conformal anomaly
* Conformal cyclic cosmology
* Conformal family
* Conformal field theory
* Conformal gravity
* Conformal infinity
* Conformal supergravity
* Conformal symmetry
* Conformational entropy
* Congruence (general relativity)
* Conical pendulum
* Conifold
* Conjugate depth
* Conjugate variables
* Conjugate variables (thermodynamics)
* Conoscopy
* Conservation law
* Conservation of energy
* Conservation of mass
* Conservative force
* Conservative vector field
* Conserved current
* Conserved property
* Consistent histories
* Constant-energy surface
* Constant of motion
* Constantin Carathéodory
* Constantin Perskyi
* Constantin Senlecq
* Constantine Pozrikidis
* Constantino Tsallis
* Constituent quark
* Constituent quark mass
* Constitutive equation
* Constraint algebra
* Constructive quantum field theory
* Contact (mechanics)
* Contact angle
* Contact area
* Contact electrification
* Contact force
* Contact image sensor
* Contact mechanics
* Contact protection
* Contact resistance
* Contaminated Gaussian
* Contemporary Physics
* Contiguity
* Continuity equation
* Continuous wave
* Continuum mechanics
* Contorsion tensor
* Contour line
* Contributors to general relativity
* Contributors to the mathematical background for general relativity
* Control moment gyroscope
* Control rod
* Control volume
* Controlled NOT gate
* Controlled aerodynamic instability phenomena
* Convection
* Convection cell
* Convection heater
* Convection microwave
* Convection zone
* Convection–diffusion equation
* Convective available potential energy
* Convective inhibition
* Convective instability
* Convective mixing
* Convective overturn
* Conventional lens
* Conventional superconductor
* Conyers Herring
* Coolfluid
* Cooling curve
* Cooper electron pair
* Cooper pair
* Cooperstock's energy-localization hypothesis
* Coordinate-free
* Coordinate conditions
* Coordinate system
* Coordinate time
* Coordinated flight
* Coordination geometry
* Copenhagen (play)
* Copenhagen interpretation
* Copernican principle
* Copper indium gallium selenide solar cells
* Core-excited shape resonance
* Core/Shell Semiconductor Nanocrystals
* Core (optical fiber)
* Core electron
* Core–mantle boundary
* Coriolis effect
* Coriolis field
* Coriolis–Stokes force
* Corium (nuclear reactor)
* Cornelis Dirk Andriesse
* Cornelis Rudolphus Theodorus Krayenhoff
* Cornelius Denvir
* Cornelius Lanczos
* Cornell Electron Storage Ring
* Cornell Laboratory for Accelerator-based Sciences and Education
* Corner reflector
* Cornering force
* Corona
* Corona (optical phenomenon)
* Corona discharge
* Corona poling
* Coronal mass ejection
* Coronal radiative losses
* Coronal seismology
* Corpuscular theory of light
* Corrado Giannantoni
* Correlation dimension
* Correlation function (astronomy)
* Correlation function (quantum field theory)
* Correlation function (statistical mechanics)
* Correlation sum
* Correspondence principle
* Correspondence rules
* Coset conformal field theory
* Cosmas Zachos
* Cosmic-ray observatory
* Cosmic Anisotropy Polarization Mapper
* Cosmic Background Explorer
* Cosmic Background Imager
* Cosmic Research
* Cosmic censorship hypothesis
* Cosmic gravitational wave background
* Cosmic infrared background
* Cosmic microwave background radiation
* Cosmic neutrino background
* Cosmic noise
* Cosmic ray
* Cosmic ray spallation
* Cosmic ray visual phenomena
* Cosmic string
* Cosmic variance
* Cosmogenic nuclide
* Cosmogony
* Cosmological constant
* Cosmological decade
* Cosmological perturbation theory
* Cosmological principle
* Cosmology
* Cosmos
* Cosmotron
* Coster–Kronig transition
* Cotton effect
* Cotton tensor
* Cotton–Mouton effect
* Cottrell atmosphere
* Couette flow
* Coulomb
* Coulomb's law
* Coulomb barrier
* Coulomb blockade
* Coulomb collision
* Coulomb excitation
* Coulomb gap
* Coulomb potential
* Coulomb staircase
* Counter-electromotive force
* Counter-scanned images
* Counter-scanning
* Counterfactual definiteness
* Counting efficiency
* Counts per minute
* Couple (mechanics)
* Coupled-wave method
* Coupled cluster
* Coupling (physics)
* Coupling constant
* Coupling loss
* Coupling parameter
* Courant–Friedrichs–Lewy condition
* Course of Theoretical Physics
* Covariant Hamiltonian field theory
* Covariant classical field theory
* Covariant derivative
* Covariant formulation of classical electromagnetism
* Cowan–Reines neutrino experiment
* Crab cavity
* Craig Bohren
* Creation and annihilation operators
* Creation ex materia
* Creation ex nihilo
* Creeping wave
* Cremona diagram
* Crepuscular rays
* Crest (physics)
* Critical Mach number
* Critical Mass (book)
* Critical angle of attack
* Critical band
* Critical dimension
* Critical distance
* Critical exponent
* Critical field
* Critical heat flux
* Critical ionization velocity
* Critical line (thermodynamics)
* Critical opalescence
* Critical phenomena
* Critical point (thermodynamics)
* Critical radius
* Critical relative humidity
* Critical resolved shear stress
* Critical size
* Critical taper
* Critical temperature
* Critical variable
* Criticality accident
* Criticism of the theory of relativity
* Crivăţ
* Crookes radiometer
* Crooks fluctuation theorem
* Cross-phase modulation
* Cross-recurrence quantification
* Cross entropy
* Cross fluid
* Cross modulation
* Cross sea
* Cross section (physics)
* Crossing (physics)
* Crosswind
* Crow instability
* Crowbar (circuit)
* Crown glass (optics)
* CryoEDM
* Cryocooler
* Cryoelectronics
* Cryogenic Dark Matter Search
* Cryogenic Rare Event Search with Superconducting Thermometers
* Cryogenic particle detectors
* Cryogenic processor
* Cryogenic storage dewar
* Cryogenics
* Cryomodule
* Cryophorus
* Cryopump
* Cryoscopic constant
* Cryotronics
* Crypton (particle)
* Cryst. Growth Des.
* Cryst Growth Des
* Crystal
* Crystal (software)
* Crystal Ball (detector)
* Crystal Ball function
* Crystal Growth & Design
* Crystal growth
* Crystal model
* Crystal momentum
* Crystal monochromator
* Crystal optics
* Crystal oven
* Crystal structure
* Crystal structure of boron-rich metal borides
* Crystal structure prediction
* Crystal system
* Crystal twinning
* Crystalline
* Crystalline solid
* Crystallinity
* Crystallization
* Crystallographic database
* Crystallographic defect
* Crystallographic group
* Crystallographic point group
* Crystallographic restriction theorem
* Crystallography
* Crystallography and NMR system
* Crystalloluminescence
* Csaba Csáki
* Ctirad Uher
* Cu-Pt type ordering in III-V semiconductor
* Cubic crystal system
* Cubic metre
* Cumulative dose
* Cunningham correction factor
* Cuntz algebra
* Curie
* Curie's law
* Curie constant
* Curie temperature
* Curie–Weiss law
* Curl (mathematics)
* Current (stream)
* Current algebra
* Current density
* Current density (quantum mechanics)
* Current quark
* Current quark mass
* Current sheet
* Current sources and sinks
* Current superfield
* Curtis Callan
* Curtis J. Humphreys
* Curvature invariant
* Curvature invariant (general relativity)
* Curveball
* Curved mirror
* Curved spacetime
* Cuspy halo problem
* Custodial symmetry
* Cutoff (physics)
* Cutoff voltage
* Cycles of Time (book)
* Cyclic model
* Cyclone
* Cyclonic separation
* Cyclops laser
* Cyclotron
* Cyclotron radiation
* Cyclotron resonance
* Cylinder stresses
* Cylinderical cloak
* Cylindrical multipole moments
* Cymatics
* Cyril Domb
* Cyril Hilsum
* Cyril Isenberg
* Cyril Norman Hinshelwood
* Cyril Sinelnikov
* Czesław Białobrzeski
* Czochralski process
* César Lattes