# Cone (disambiguation)

A cone is a basic geometrical shape.
Cone may also refer to:

## Mathematics

* Cone (category theory)
* Cone (formal languages)
* Cone (graph theory), a graph in which one vertex is adjacent to all others
* Cone (linear algebra), a subset of vector space
* Mapping cone (homological algebra)
* Cone (topology)
* Projective cone, the union of all lines that intersect a projective subspace and an arbitrary subset of some other disjoint subspace

## Astronomy

* Cone Nebula (also known as NGC 2264), an H II region in the constellation of Monoceros
* Ionization cone, cones of material extending out from spiral galaxies

## Engineering and physical science

* Antenna blind cone, the volume of space that cannot be scanned by an antenna
* Cone algorithm identifies surface particles quickly and accurately for three-dimensional clusters composed of discrete particles
* Cone calorimeter, a modern device used to study the fire behavior of small samples of various materials in condensed phase
* Cone clutch, which serves the same purpose as a disk or plate clutch
* Cone of depression occurs in an aquifer when groundwater is pumped from a well
* Cone of uncertainty, used in project management to describe the evolution of the amount of best case uncertainty during a project.
* Hertzian cone, the cone of force that propagates through a brittle, amorphous or cryptocrystalline solid material from a point of impact
* Nose cone, used to refer to the forwardmost section of a rocket, guided missile or aircraft
* Pyrometric cone, pyrometric devices that are used to gauge time and temperature during the firing of ceramic materials
* Roller cone bit, a drill bit used for drilling through rock, for example when drilling for oil and gas
* Skid cone, a hollow steel or plastic cone placed over the sawn end of a log
* Speaker cone, the cone inside a loudspeaker that moves to generate sound
* Spinning cone columns are used in a form of steam distillation to gently extract volatile chemicals from liquid foodstuffs

## Biology and medicine

* Cone cell, in anatomy, a type of light-sensitive cell found along with rods in the retina of the eye
* Cone dystrophy, an inherited ocular disorder characterized by the loss of cone cells
* Cone snail, a carnivorous mollusc of the family Conidae
* Conifer cone, a seed-bearing organ on conifer plants
* Growth cone, a dynamic, actin-supported extension of a developing axon seeking its synaptic target
* Strobilus, a term for several categories of cone-like structures in botany
* Witch-hazel cone gall aphid (Hormaphis hamamelidis), a minuscule insect, a member of the aphid superfamily

## Geography

* Cinder cone, a steep conical hill of volcanic fragments around and downwind from a volcanic vent
* Cone (hill), a hill in the shape of a cone which may or may not be volcanic in origin
* Dirt cone, a feature of a glacier or snow patch, in which dirt forms a coating insulating the ice below
* Parasitic cone (or satellite cone), a geographical feature found around a volcano
* Shatter cone, rare geological feature in the bedrock beneath meteorite impact craters or underground nuclear explosions
* Volcanic cone, among the simplest volcanic formations in the world

## Places

* Cone (Phrygia), a town and bishopric of ancient Phrygia
* Cone, Michigan, an unincorporated community in Michigan
* Cone, Texas, an unincorporated community in Crosby County, Texas, United States
* Cone Islet, a small granite island in south-eastern Australia

## People

* Cone (surname)
* Jason McCaslin (born 1980), nicknamed Cone, bassist for the Canadian band Sum 41

## Other uses

* Ice cream cone, an edible container in which ice cream is served, shaped like an inverted cone open at its top
* Snow cone, a dessert usually made of crushed or shaved ice, flavored with sweet, usually fruit-flavored, brightly colored syrup
* Traffic cone, a brightly colored cone-shaped plastic object commonly used as a temporary traffic barrier or warning sign
* USS Cone (DD-866), a Gearing-class destroyer of the United States Navy
* Cone Mills Corporation, a textile manufacturer
* "The Cone", a 1895 horror science fiction short story by English writer H. G. Wells