acrihellin
A cardiotonic drug.

acs
plural of ac

actinophore
A cartilaginous spine that supports the fin rays of fish

actinophores
plural of actinophore

actinorhiza
A root nodule formed as a result of a symbiotic relationship between an actinomycete and fine plant roots.

actinorhizas
plural of actinorhiza

actinorhodopsin
A rhodopsin found in the freshwater actinobacterium Rhodoluna lacicola

actinorhodopsins
plural of actinorhodopsin

actodigin
A cardiotonic steroid, C₂₉H₄₄O₉ which is a synthetic isomer of digitoxigenin-glucoside with a modified lactone ring.

actuaryships
plural of actuaryship

acyl
Any of class of organic radicals, RCO-, formed by the removal of a hydroxyl group from a carboxylic acid.

acylcarnitine
Any ester of carnitine and a carboxylic acid (especially a fatty acid)

acylcarnitines
plural of acylcarnitine

acylhydrazide
The hydrazide of a carboxylic acid

acylhydrazides
plural of acylhydrazide

acylhydrazine
The N-amino derivative of a carboxylic acid amide R-CO-NH-NH₂

acylhydrazines
plural of acylhydrazine

acylhydrazone
Any acyl hydrazone

acylhydrazones
plural of acylhydrazone

acylium
Any acyl cation R-C⁺=O derived from a carboxylic acid.

acyliums
plural of acylium

acyloxy
A univalent radical R-COO-, derived from a carboxylic acid

acyloxys
plural of acyloxy

acyls
plural of acyl

adah
a group or meeting (particularly for purposes of worship or judicial matters); congregation; assembly; prayer meeting

adamantanone
The alicyclic ketone formally derived from adamantane by replacing a bridge methylene group with a carbonyl group

adelantado
A title bestowed by the king on certain nobles in the 15th-17th centuries, who granted them governorship of a province or charged them with conquering a foreign territory

adelantadoes
plural of adelantado

adelantados
plural of adelantado

adenocarcinogenesis
The carcinogenesis of adenocarcinomas

adeptships
plural of adeptship

adjutantships
plural of adjutantship

adm
Abbreviation of administer and related forms of that word (administering, administrate, administration. administrative, administrator, etc.)

administratorships
plural of administratorship

adminships
plural of adminship

admirail
Obsolete form of admiral.

admiral
The commander of a naval squadron or fleet, regardless of formal rank.
The appointed commander of a navy, regardless of formal title.
A high rank in the British and American Navies, NATO grade OF-9, equivalent ranks in other navies, in coast guards, etc.
The commander of a fishing or merchant fleet, particularly (historical, Canada) a captain granted special privileges in exchange for bringing the first ship of a given fishing season to certain harbors in Newfoundland.
Any of several species of nymphalid butterflies of the genera Kaniska, Limenitis and Vanessa.
The shell of the Conus ammiralis; the cone shells of various other species displaying similarly intricate banding.
Synonym of flagship: an admiral's ship in a fleet, the command or largest ship in a naval or commercial fleet.
Synonym of emir, a Muslim commander or prince.
Any of several varieties of pear, the trees which produce them.

admirall
Obsolete form of admiral.

admiralle
Obsolete form of admiral.

admiralships
plural of admiralship

admirant
Obsolete form of admiral.

admirante
Obsolete form of admiral.

advection
The horizontal movement of a body of atmosphere (or other fluid) along with a concurrent transport of its temperature, humidity etc.
The transport of a scalar by bulk fluid motion.

advections
plural of advection

advertisement
A commercial solicitation designed to sell some commodity, service or similar.
A public notice.
A recommendation of a particular product, service or person.
Notoriety.
In gin rummy, the discarding of a card of one's preferred suit so as to mislead the opponent into thinking you do not want it.

advertisements
plural of advertisement

advertizement
Alternative spelling of advertisement.

advertizements
plural of advertizement

adviserships
plural of advisership

adviso
An advisory; information; advice; intelligence.
An advice boat or dispatch boat.

advisoes
plural of adviso

advisorships
plural of advisorship

advisos
plural of adviso

advocateships
plural of advocateship

aeb
Initialism of as evidenced by.

aedileships
plural of aedileship

aero
Of or pertaining to aviation.
Aerodynamic; having an aerodynamic appearance.

aerobeacon
A light used to warn aircraft away from tall structures.

aerobeacons
plural of aerobeacon

aeroboat
A form of hydroaeroplane; a flying boat.

aeroboats
plural of aeroboat

aerobomb
A bomb dropped from an aircraft.

aerobombs
plural of aerobomb

aerobots
plural of aerobot

aerobridge
Alternative form of airbridge: an elevated corridor connecting an airport to a plane.

aerobridges
plural of aerobridge

aerobus
airbus; passenger airliner

aerocab
Synonym of aircab (“a flying taxicab”).

aerocabs
plural of aerocab

aerocapture
A form of aerobraking in which a spacecraft uses atmospheric drag to decelerate from a hyperbolic trajectory into a closed orbit, eliminating the need for a large orbital-insertion burn and requiring only small correction burns to raise the spacecraft's periapsis out of the atmosphere.

aerocaptures
plural of aerocapture

aeroclub
A flying club; an organization for aircraft pilots.

aeroclubs
plural of aeroclub

aerocraft
An aircraft.

aerocrafts
plural of aerocraft

aeroderivative
A relatively small and light gas turbine based on those used in aircraft.

aeroderivatives
plural of aeroderivative

aerodone
Synonym of glider (“type of aircraft”).

aerodones
plural of aerodone

aerodrome
An airfield
An airfield:
An airfield:
An airfield:
A flying machine composed of aeroplanes (“airfoils, aerodynamic surfaces”). An aeroplane (“airplane, aircraft”), particularly one constructed by or according to the design of Samuel Pierpont Langley and Charles M. Manly.

aerodromes
plural of aerodrome

aerodynamics
The science of the dynamics of bodies moving relative to gases, especially the interaction of moving objects with the atmosphere.
The aerodynamic properties of a particular object (typically a car or aircraft).

aerodyne
A heavier-than-air aircraft, deriving its lift from motion.

aerodynes
plural of aerodyne

aeroengine
Alternative spelling of aero engine.

aeroengineer
An engineer in the aircraft industry.

aeroengineers
plural of aeroengineer

aeroengines
plural of aeroengine

aerofoil
British standard form of airfoil.

aerofoils
plural of aerofoil

aerogami
Airborne origami.

aerogun
An antiaircraft cannon.

aeroguns
plural of aerogun

aeromechanic
A mechanic in the aircraft industry

aeromechanics
The branch of mechanics that deals with the motion of gases; it comprises aerostatics and aerodynamics

aerometeorograph
A meteorograph designed for use in an aircraft or other flying vehicle.

aerometeorographs
plural of aerometeorograph

aeromodeler
Alternative form of aeromodeller.

aeromodelers
plural of aeromodeler

aeromodeller
A maker of model aircraft.

aeromodellers
plural of aeromodeller

aeromodelling
The building and flying of model aircraft

aeromodellist
Synonym of aeromodeller.

aeromodellists
plural of aeromodellist.

aeromorph
A fictional anthropomorphic character based on an aircraft, often with design influences from dragons, sharks, and mechas.

aeromorphs
plural of aeromorph

aeronat
A dirigible balloon.

aeronef
airplane; a flying machine, an aircraft.

aeronefs
plural of aeronef