antipassback
A security mechanism preventing an access card or similar device from being used to enter an area a second time without first leaving it (so that the card cannot be passed back to a second person who wants to enter).

antiport
A structure in a cell membrane that simultaneously transports different molecules or ions through the membrane in opposite directions.

antiports
plural of antiport

antirollover
A technology in a vehicle designed to prevent rollover.

antiscience
Opposed to science and scientific progress.

antisciences
plural of antiscience

antishipper
Alternative form of anti-shipper.

antishippers
plural of antishipper

antistories
plural of antistory

antistory
Alternative spelling of anti-story.

antiworship
Actions that are contrary to worship.

antroba
A crushed eggplant dish eaten, often with saltfish, on the Caribbean island of Antigua.

antrustionships
plural of antrustionship

aonach
An ancient Irish public national assembly called upon the death of a king, queen, notable sage or warrior as part of ancestor-worship practices.

aonachs
plural of aonach

apaugasma
radiance, glory

aphanizophyll
A carotenoid found in certain algae and cyanobacteria.

apicoseptum
An apical septum

apicoseptums
plural of apicoseptum

apishamores
plural of apishamore

aplustre
An ornamental appendage of wood at the stern of a Roman ship, usually spreading like a fan and curved like a bird's feather.

aplustres
plural of aplustre

apocarotenal
A carotenoid found in spinach and citrus fruits.

apocarotenals
plural of apocarotenal

apocarotenoid
Any compound formed by the removal of fragments of the carbon backbone (usually by oxidative cleavage) of a carotenoid.

apocarotenoids
plural of apocarotenoid

apocarp
A carpel of an apocarpous plant.

apocarpium
Obsolete form of apocarp.

apocarps
plural of apocarp

apolipophorin
Any of a group of apolipoproteins that function in lipid transport and lipoprotein metabolism

apolipophorins
plural of apolipophorin

apolytikia
plural of apolytikion

apolytikion
A troparion chanted at Orthodox Christian worship services, summarizing the feast being celebrated that day.

aponeurosporene
A carotenoid that plays a role in the photosynthetic process of some bacteria.

apoplast
The space outside of a plant's plasma membrane through which water and soluble nutrients are transported across a tissue or organ

apoplasts
plural of apoplast

apostleships
plural of apostleship

apothecaryships
plural of apothecaryship

apotransferrin
The apoprotein of transferrin

applecarts
plural of applecart

apprenticeage
Apprenticeship.

apprenticehood
apprenticeship

apprenticehoods
plural of apprenticehood

apprenticeships
plural of apprenticeship

apprentisage
Obsolete form of apprenticeage.

aprocarb
Synonym of propoxur.

apts
plural of apt

aq
Abbreviation of aqueous solution.

aquabike
Synonym of jet ski.
Synonym of water bicycle.
Synonym of waterbike.

aquabikes
plural of aquabike

aquaglyceroporin
A form of aquaporin that is active in the transport of water and glycerol

aquaglyceroporins
plural of aquaglyceroporin

aquaglycoporin
A form of aquaporin that is active in the transport of water and glycols (including glycerol)

aquaglycoporins
plural of aquaglycoporin

arabin
A carbohydrate, isomeric with cane sugar, found in gum arabic
Mucilage, especially that made of gum arabic

arabine
Alternative form of arabin.

arabines
plural of arabine

arabins
plural of arabin

arbitratorships
plural of arbitratorship

archbishes
plural of archbish

archboard
The board, on the stern of a ship, on which its name is painted

archboards
plural of archboard

archdeaconships
plural of archdeaconship

architecture
The art and science of designing and managing the construction of buildings and other structures, particularly if they are well proportioned and decorated.
Any particular style of building design.
Construction, in a more general sense; frame or structure; workmanship.
A unifying structure.
A family of CPUs sharing a common instruction set and having partial or full compatibility with software built on each other.
A specific model of a microchip or CPU.
The structure and design of a system or product.

architectures
plural of architecture

archmold
Alternative form of archmould.

archmolds
plural of archmold

archmould
A plastic moulding that surrounds and protects the wheel arch of a car.

archmoulds
plural of archmould

archonships
plural of archonship

archrivalries
plural of archrivalry

archrivalry
The relationship between two or more archrivals. The term usually applies to two archrivals.

arenobufagin
A cardiotoxic bufanolide steroid secreted by the Argentine toad Bufo arenarum, having similar effects to digitalis.

argentaffinoma
A carcinoid tumor of the gastrointestinal tract

argentaffinomas
plural of argentaffinoma

argosies
plural of argosy

argosy
A merchant ship.
A merchant flotilla, fleet.
An abundant supply, boatload.

aristeromycin
A carbanucleoside form of adenosine (1R,2S,3R,5R)-3-(6-aminopurin-9-yl)-5-(hydroxymethyl)cyclopentane-1,2-diol

armado
Obsolete form of armada (“fleet of warships”).
A catfish of the genus Silurus.

armadoes
plural of armado

armados
plural of armado

armator
A shipowner.

armators
plural of armator

armbinder
A restraint that binds the arms together into a single sleeve.

armbinders
plural of armbinder

armor
A protective layer over a body, vehicle, or other object intended to deflect or diffuse damaging forces.
A natural form of this kind of protection on an animal's body.
A metal plate, protecting a ship, military vehicle, or aircraft.
A tank, or other heavy mobile assault vehicle.
A military formation consisting primarily of tanks or other armoured fighting vehicles, collectively.
The naturally occurring surface of pebbles, rocks or boulders that line the bed of a waterway or beach and provide protection against erosion.

armors
plural of armor

armour
British standard spelling of armor.

arpillera
A patchwork picture made predominantly by women in Chile, especially as a form of underground protest during the military dictatorship (1973–90) of Augusto Pinochet.

arpilleras
plural of arpillera

arquitecture
Misspelling of architecture, most prevalent among Spanish speakers.

arribada
A mass nesting of marine turtles.

arribadas
plural of arribada

arrivage
An arrival, especially one by ship or boat.

arrivages
plural of arrivage

arrosion
The wasting away of a vessel wall under pressure.
A gnawing.

arrosions
plural of arrosion

arsanylidene
the arsenic analogue of a carbene R-As

arsanylidenes
plural of arsanylidene

arsehole
The anus.
An inconsiderate, mean-spirited, or otherwise contemptible person. (Less offensive than fucker or cunt.)
Anything (especially a place) that is unpleasant or undesirable.
A variant of the card game big two.

arseholes
plural of arsehole

articleship
The status or period of being articled, or bound under the articles of an apprenticeship.

articleships
plural of articleship

articulateds
plural of articulated

artificerships
plural of artificership

artisanships
plural of artisanship

artmobile
A vehicle that operates as a mobile art exhibition.

artmobiles
plural of artmobile

arvee
Alternative form of RV (“recreational vehicle”).

arvees
plural of arvee

ashipus
plural of ashipu

ashpan
A container beneath a boiler's furnace, catching ash and clinker that falls through the firebars
A container that fits below the grate of a domestic fireplace.
A large pan below the grate and firebox of a steam locomotive.

ashpans
plural of ashpan

ashpit
A pit for the disposal of ashes.
a pit between the rails where a steam locomotive can drop its fire at the end of a day's work, before going "on shed".

ashpits
plural of ashpit

asm
Pseudo-acronym of assignment.

aspartyl
The univalent radical obtained by removal of a hydrogen atom from the carboxylic acid group of aspartic acid

aspartyls
plural of aspartyl

aspersoria
plural of aspersorium