Glossary · Nouns · A
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TermTypeDefinitionClassificationsUpdated
Army CutwormnounMWElarvae (of a noctuid moth) that travel in large groups and destroy grains and alfalfa in the midwestern statesverified
Army EngineernounMWEa member of the military who is trained in engineering and construction workverified
Armywormnounnoctuid moth larvae that travel in multitudes destroying especially grass and grainverified
Aromatherapynounthe therapeutic use of aromatic plant extracts and essential oils in baths or massageverified
Aromatic CompoundnounMWEa hydrocarbon containing one or more benzene rings that are characteristic of the benzene series of compoundsverified
Aromatic HydrocarbonnounMWEa hydrocarbon that contains one or more benzene rings that are characteristic of the benzene series of organic compoundsverified
ARPANETnounAdvanced Research Projects Agency Network, a pioneer packet-switched network that was built in the early 1970s under contract to the US Government, led to the development of today's Internet, and was decommissioned in June 1990.Network
Arracknounany of various strong liquors distilled from the fermented sap of toddy palms or from fermented molassesverified
Arrangementnouna piece of music that has been adapted for performance by a particular set of voices or instrumentsverified
Arrangernouna musician who adapts a composition for particular voices or instruments or for another style of performanceverified
Arrest WarrantnounMWEa warrant authorizing law enforcement officials to apprehend an offender and bring that person to courtverified
Arresternouna restraint that slows airplanes as they land on the flight deck of an aircraft carrierverified
Arrester HooknounMWEa restraint that slows airplanes as they land on the flight deck of an aircraft carrierverified
Arriere PenseenounMWEan unstated doubt that prevents you from accepting something wholeheartedlyverified
Arrival TimenounMWEthe time at which a public conveyance is scheduled to arrive at a given destinationverified
Arrivistenouna person who has suddenly risen to a higher economic status but has not gained social acceptance of others in that classverified
Arrogatornouna person who through conceit makes pretentious claims to rights or advantages that he or she is not entitled to or to qualities that he or she does not possessverified
Arrownouna projectile with a straight thin shaft and an arrowhead on one end and stabilizing vanes on the otherverified
Arrow WoodnounMWEdeciduous shrub of eastern North America having blue-black berries and tough pliant wood formerly used to make arrowsverified
Arrowleaf GroundselnounMWEperennial with sharply toothed triangular leaves on leafy stems bearing a cluster of yellow flower headsverified
Arrowrootnouncanna grown especially for its edible rootstock from which arrowroot starch is obtainedverified
Arseholenouninsulting terms of address for people who are stupid or irritating or ridiculousverified
Arsenalnouna military structure where arms and ammunition and other military equipment are stored and training is given in the use of armsverified
Arsinenouna poisonous colorless flammable gas used in organic synthesis and to dope transistors and as a poison gas in warfareverified
Art DepartmentnounMWEthe academic department responsible for teaching art and art appreciationverified
Art DirectornounMWEthe director in charge of the artistic features of a theatrical production (costumes and scenery and lighting)verified
Art EditornounMWEan editor who is responsible for illustrations and layouts in printed matterverified
Art FormnounMWE(architecture) a form of artistic expression (such as writing or painting or architecture)verified
Art HistorynounMWEthe academic discipline that studies the development of painting and sculptureverified