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Glossary · Nouns · A

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TermTypeDefinitionClassificationsUpdated
Arum FamilynounMWEanthuriumverifiedMay 18, 2026
Arum LilynounMWESouth African plant widely cultivated for its showy pure white spathe and yellow spadixverifiedMay 18, 2026
Arytaenoidnouneither of two small cartilages at the back of the larynx to which the vocal folds are attachedverifiedMay 18, 2026
Arytenoidnouneither of two small cartilages at the back of the larynx to which the vocal folds are attachedverifiedMay 18, 2026
Arytenoid CartilagenounMWEeither of two small cartilages at the back of the larynx to which the vocal folds are attachedverifiedMay 18, 2026
Asa DulcisnounMWEgum resin used especially in treating skin irritationverifiedMay 18, 2026
Asafetidanounthe brownish gum resin of various plantsverifiedMay 18, 2026
Asafoetidanounthe brownish gum resin of various plantsverifiedMay 18, 2026
Asananoun(Hinduism) a posture or manner of sitting (as in the practice of yoga)verifiedMay 18, 2026
Asarabaccanounthick creeping evergreen herb of western EuropeverifiedMay 18, 2026
Asbestosnouna fibrous amphiboleverifiedMay 18, 2026
Asbestos AbatementnounMWEthe removal of asbestos from a public buildingverifiedMay 18, 2026
Asbestosisnounlung disease caused by inhaling asbestos particlesverifiedMay 18, 2026
Ascariasisnouninfestation of the human intestine with Ascaris roundwormsverifiedMay 18, 2026
Ascendancenounthe state that exists when one person or group has power over anotherverifiedMay 18, 2026
Ascendancynounthe state that exists when one person or group has power over anotherverifiedMay 18, 2026
Ascendencenounthe state that exists when one person or group has power over anotherverifiedMay 18, 2026
Ascendencynounthe state that exists when one person or group has power over anotherverifiedMay 18, 2026
Ascendernoun(printing) the part of tall lowercase letters that extends above the other lowercase lettersverifiedMay 18, 2026
Ascending AortanounMWEthe ascending part of the aorta as it emerges from the left ventricleverifiedMay 18, 2026
Ascending ArterynounMWEthe branch of the ileocolic artery that supplies the ascending colonverifiedMay 18, 2026
Ascending ColonnounMWEthe part of the large intestine that ascends from the cecum to the transverse colonverifiedMay 18, 2026
Ascending NodenounMWEthe point at which an orbit crosses the ecliptic plane going northverifiedMay 18, 2026
Ascensionnounthe act of changing location in an upward directionverifiedMay 18, 2026
Ascentnounthe act of changing location in an upward directionverifiedMay 18, 2026
ascertainnounLearn or discover with certainty.ProcessMay 9, 2026
Ascesisnounrigorous self-denial and active self-restraintverifiedMay 18, 2026
Asceticismnounthe doctrine that through renunciation of worldly pleasures it is possible to achieve a high spiritual or intellectual stateverifiedMay 18, 2026
Ascidiannounminute sedentary marine invertebrate having a saclike body with siphons through which water enters and leavesverifiedMay 18, 2026
Ascidian TadpolenounMWEfree-swimming larva of ascidiansverifiedMay 18, 2026
Asciinoun(computer science) a code for information exchange between computers made by different companiesverifiedMay 18, 2026
Ascii Control CharacternounMWEASCII characters to indicate carriage return or tab or backspaceverifiedMay 18, 2026
Ascii Text FilenounMWEa text file that contains only ASCII characters without special formattingverifiedMay 18, 2026
Ascitesnounaccumulation of serous fluid in peritoneal cavityverifiedMay 18, 2026
Asclepiadnounany plant of the family AsclepiadaceaeverifiedMay 18, 2026
Ascocarpnounmature fruiting body of an ascomycetous fungusverifiedMay 18, 2026
Ascolichennouna lichen in which the fungus component is an ascomyceteverifiedMay 18, 2026
Ascomanounan ascocarp having the spore-bearing layer of cells (the hymenium) on a broad disklike receptacleverifiedMay 18, 2026
Ascomycetenounany fungus of the class Ascomycetes (or subdivision Ascomycota) in which the spores are formed inside an ascusverifiedMay 18, 2026
Ascomycetous FungusnounMWEany fungus of the class Ascomycetes (or subdivision Ascomycota) in which the spores are formed inside an ascusverifiedMay 18, 2026
Ascorbic AcidnounMWEa vitamin found in fresh fruits (especially citrus fruits) and vegetablesverifiedMay 18, 2026
Ascosporenounsexually produced fungal spore formed within an ascusverifiedMay 18, 2026
Ascotnouna cravat with wide square endsverifiedMay 18, 2026
Ascriptionnounassigning some quality or character to a person or thingverifiedMay 18, 2026
Ascusnounsaclike structure in which ascospores are formed through sexual reproduction of ascomycetesverifiedMay 18, 2026
Asdicnouna measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to returnverifiedMay 18, 2026
Asepsisnounthe process of inhibiting the growth and multiplication of microorganismsverifiedMay 18, 2026
Asexual ReproductionnounMWEreproduction without the fusion of gametesverifiedMay 18, 2026
Asexualitynounhaving no evident sex or sex organsverifiedMay 18, 2026
Ash BinnounMWEa bin that holds rubbish until it is collectedverifiedMay 18, 2026
Ash GraynounMWEa light shade of greyverifiedMay 18, 2026
Ash GreynounMWEa light shade of greyverifiedMay 18, 2026
Ash TreenounMWEany of various deciduous pinnate-leaved ornamental or timber trees of the genus FraxinusverifiedMay 18, 2026
Ash-Keynounwinged seed of the ash treeverifiedMay 18, 2026
Ash-Leaved MaplenounMWEcommon shade tree of eastern and central United StatesverifiedMay 18, 2026
Ash-Pannouna receptacle fitted beneath the grate in which ashes collect and are removedverifiedMay 18, 2026
Ashcakenouncorn bread wrapped in cabbage leaves and baked in hot ashes (southern)verifiedMay 18, 2026
Ashcannouna bin that holds rubbish until it is collectedverifiedMay 18, 2026
Ashlarnouna rectangular block of hewn stone used for building purposesverifiedMay 18, 2026
Ashramnouna place of religious retreat modeled after the Indian ashramverifiedMay 18, 2026
Ashtraynouna receptacle for the ash from smokers' cigars or cigarettesverifiedMay 18, 2026
Asidenouna line spoken by an actor to the audience but not intended for others on the stageverifiedMay 18, 2026
Asininitynounthe quality of being asinineverifiedMay 18, 2026
Askernounsomeone who asks a questionverifiedMay 18, 2026
Askingnounthe verbal act of requestingverifiedMay 18, 2026
Asking PricenounMWEthe price at which something is offered for saleverifiedMay 18, 2026
Aslnounthe sign language used in the United StatesverifiedMay 18, 2026
Aspnouncobra used by the Pharaohs as a symbol of their power over life and deathverifiedMay 18, 2026
Asp VipernounMWEof southern EuropeverifiedMay 18, 2026
Asparaginasenounantineoplastic drug (trade name Elspar) sometimes used to treat lymphoblastic leukemiaverifiedMay 18, 2026
Asparaginenouna crystalline amino acid found in proteins and in many plants (e.g., asparagus)verifiedMay 18, 2026
Asparagusnounplant whose succulent young shoots are cooked and eaten as a vegetableverifiedMay 18, 2026
Asparagus BeannounMWESouth American bean having very long succulent podsverifiedMay 18, 2026
Asparagus BednounMWEa bed in which asparagus is growingverifiedMay 18, 2026
Asparagus FernnounMWEa fernlike plant native to South AfricaverifiedMay 18, 2026
Asparagus PeanounMWEsprawling European annual having a 4-winged edible podverifiedMay 18, 2026
Aspartamenounan artificial sweetener made from aspartic acidverifiedMay 18, 2026
Aspartic AcidnounMWEa crystalline amino acid found in proteins and occurring naturally in sugar beets and sugar caneverifiedMay 18, 2026
Aspectnounthe beginning or duration or completion or repetition of the action of a verbverifiedMay 18, 2026
Aspect RationounMWEthe ratio of the width to the height of a tv pictureverifiedMay 18, 2026
Aspennounany of several trees of the genus Populus having leaves on flattened stalks so that they flutter in the lightest windverifiedMay 18, 2026
Aspen PoplarnounMWEa poplar that is widely cultivated in the United StatesverifiedMay 18, 2026
Aspernoun20 aspers equal 1 kurus in TurkeyverifiedMay 18, 2026
Aspergillnouna short-handled device with a globe containing a spongeverifiedMay 18, 2026
Aspergillosisnoundisease especially in agricultural workers caused by inhalation of Aspergillus spores causing lumps in skin and ears and respiratory organsverifiedMay 18, 2026
Asperitynounsomething hard to endureverifiedMay 18, 2026
Aspersionnounan abusive attack on a person's character or good nameverifiedMay 18, 2026
Aspersoriumnounthe basin or other vessel that holds holy water in Roman Catholic ChurchesverifiedMay 18, 2026
Asphyxianouna condition in which insufficient or no oxygen and carbon dioxide are exchanged on a ventilatory basisverifiedMay 18, 2026
Asphyxiationnounthe condition of being deprived of oxygen (as by having breathing stopped)verifiedMay 18, 2026
Asphyxiatornouna manually operated device for extinguishing small firesverifiedMay 18, 2026
Aspicnounsavory jelly based on fish or meat stock used as a mold for meats or vegetablesverifiedMay 18, 2026
Aspidistranounevergreen perennial with large handsome basal leavesverifiedMay 18, 2026
Aspirationnouna manner of articulation involving an audible release of breathverifiedMay 18, 2026
Aspiration PneumonianounMWEinflammation of the lungs caused by inhaling or choking on vomitusverifiedMay 18, 2026
Aspiratornouna pump that draws air or another gas through a liquidverifiedMay 18, 2026
Aspirernounan ambitious and aspiring young personverifiedMay 18, 2026
Aspirinnounthe acetylated derivative of salicylic acidverifiedMay 18, 2026
Aspirin PowdernounMWEa powdered form of aspirinverifiedMay 18, 2026
Assnounhardy and sure-footed animal smaller and with longer ears than the horseverifiedMay 18, 2026