Glossary · Nouns · A
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TermTypeDefinitionClassificationsUpdated
Avulsionnounan abrupt change in the course of a stream that forms the boundary between two parcels of land resulting in the loss of part of the land of one landowner and a consequent increase in the land of anotherverified
awarenessnounHaving or showing knowledge or perception about a situation, fact, or development.Capability
Awkwardnessnounthe carriage of someone whose movements and posture are ungainly or inelegantverified
Awlwortnounsmall aquatic plant having tufted awl-shaped leaves in a basal rosette and minute white flowersverified
Awnless BromegrassnounMWEdrought-resistant perennial with awns lacking or very short and long creeping rhizomesverified
Axial SkeletonnounMWEthe part of the skeleton that includes the skull and spinal column and sternum and ribsverified
Axile PlacentationnounMWEovules are borne at or around the center of a compound ovary on an axis formed from joined septaverified
Axillary ArterynounMWEthe part of the main artery of the arm that lies in the armpit and is continuous with the subclavian artery above and the brachial artery belowverified
Axillary VeinnounMWEa continuation of the basilic vein and brachial vein that becomes the subclavian veinverified
Axisnounthe main stem or central part about which plant organs or plant parts such as branches are arrangedverified
Axletreenouna dead axle on a carriage or wagon that has terminal spindles on which the wheels revolveverified
Axolotlnounlarval salamander of mountain lakes of Mexico that usually lives without metamorphosingverified
Ayapananounlow spreading tropical American shrub with long slender leaves used to make a mildly stimulating drink resembling teaverified
Ayatollahnouna high-ranking Shiite religious leader who is regarded as an authority on religious law and its interpretation and who has political power as wellverified
Aye-Ayenounnocturnal lemur with long bony fingers and rodent-like incisor teeth closely related to the lemursverified
Azathioprinenounan immunosuppressive drug (trade name Imuran) used to prevent rejection of a transplanted organverified
Azederachnountree of northern India and China having purple blossoms and small inedible yellow fruitsverified
Azimuthnounthe azimuth of a celestial body is the angle between the vertical plane containing it and the plane of the meridianverified
Azithromycinnouna systemic antibacterial medicine (trade name Zithromax) that is prescribed to treat bacterial infections in many different parts of the bodyverified
Azotaemianounaccumulation in the blood of nitrogenous waste products (urea) that are usually excreted in the urineverified
Azotemianounaccumulation in the blood of nitrogenous waste products (urea) that are usually excreted in the urineverified