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Glossary · Nouns · A

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TermTypeDefinitionClassificationsUpdated
Arteriolenounone of the small thin-walled arteries that end in capillariesverifiedMay 18, 2026
Arteriolosclerosisnounsclerosis of the arteriolesverifiedMay 18, 2026
Arteriosclerosisnounsclerosis of the arterial wallsverifiedMay 18, 2026
Arteriosclerosis ObliteransnounMWEa stage of arteriosclerosis involving closure of blood vesselsverifiedMay 18, 2026
Arteritisnouninflammation of an arteryverifiedMay 18, 2026
Arterynouna blood vessel that carries blood from the heart to the bodyverifiedMay 18, 2026
Artery of the LabyrinthnounMWEan artery that is a branch of the basilar artery that supplies the labyrinthverifiedMay 18, 2026
Artery of the Penis BulbnounMWEa branch of the internal pudendal artery of males that supplies the bulb of the penisverifiedMay 18, 2026
Artery of the Vestibule BulbnounMWEa branch of the internal pudendal artery in females that supplies the bulb of the vestibuleverifiedMay 18, 2026
Artesian WellnounMWEa well drilled through impermeable strata into strata that receive water from a higher altitude so there is pressure to force the water to flow upwardverifiedMay 18, 2026
Artfulnessnounthe quality of being adroit in taking unfair advantageverifiedMay 18, 2026
Arthralgianounpain in a joint or jointsverifiedMay 18, 2026
Arthritisnouninflammation of a joint or jointsverifiedMay 18, 2026
Arthrocentesisnounremoval of fluid from a joint by centesisverifiedMay 18, 2026
Arthrodesisnounthe surgical fixation of a joint which is intended to result in bone fusionverifiedMay 18, 2026
Arthrogramnounan X ray of a joint after the injection of a contrast mediumverifiedMay 18, 2026
Arthrographynounroentgenographic examination of a joint after injection of radiopaque contrast mediumverifiedMay 18, 2026
Arthromerenounany of the segments in the body of a jointed animal like an arthropodverifiedMay 18, 2026
Arthropathynouna pathology or abnormality of a jointverifiedMay 18, 2026
Arthroplastynounsurgical reconstruction or replacement of a malformed or degenerated jointverifiedMay 18, 2026
Arthropodnouninvertebrate having jointed limbs and a segmented body with an exoskeleton made of chitinverifiedMay 18, 2026
Arthropod FamilynounMWEany of the arthropodsverifiedMay 18, 2026
Arthropod GenusnounMWEa genus of arthropodsverifiedMay 18, 2026
Arthroscopenouna type of endoscope that is inserted into a joint for visual examinationverifiedMay 18, 2026
Arthroscopynouna minimally invasive operation to repair a damaged jointverifiedMay 18, 2026
Arthrosporenounone of a string of thick walled vegetative resting cells formed by some algae and fungiverifiedMay 18, 2026
ArtichokenounMediterranean thistlelike plant widely cultivated for its large edible flower headverifiedMay 18, 2026
Artichoke HeartnounMWEthe tender fleshy center of the immature artichoke flowerverifiedMay 18, 2026
Artichoke PlantnounMWEMediterranean thistlelike plant widely cultivated for its large edible flower headverifiedMay 18, 2026
Article of ClothingnounMWEa covering designed to be worn on a person's bodyverifiedMay 18, 2026
Article of CommercenounMWEan article that is offered for saleverifiedMay 18, 2026
Article of FaithnounMWE(Christianity) any of the sections into which a creed or other statement of doctrine is dividedverifiedMay 18, 2026
Article of FurniturenounMWEfurnishings that make a room or other area ready for occupancyverifiedMay 18, 2026
Articles of AgreementnounMWEa contract between crew and captain of a shipverifiedMay 18, 2026
Articles of IncorporationnounMWEa legal document that creates a corporationverifiedMay 18, 2026
Articular MusclenounMWEa muscle that inserts directly onto the capsule of a jointverifiedMay 18, 2026
Articulated LaddernounMWEa ladder consisting of segments (usually four) that are held together by joints that can lock in placeverifiedMay 18, 2026
Articulated LorrynounMWEa truck consisting of a tractor and trailer togetherverifiedMay 18, 2026
Articulatenessnounthe quality of being facile in speech and writingverifiedMay 18, 2026
Articulationoun(anatomy) the point of connection between two bones or elements of a skeleton (especially if it allows motion)verifiedMay 18, 2026
Articulatio CoxaenounMWEthe ball-and-socket joint between the head of the femur and the acetabulumverifiedMay 18, 2026
Articulatio CubitinounMWEhinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadrupedverifiedMay 18, 2026
Articulatio GenusnounMWEhinge joint in the human leg connecting the tibia and fibula with the femur and protected in front by the patellaverifiedMay 18, 2026
Articulatio HumerinounMWEa ball-and-socket joint between the head of the humerus and a cavity of the scapulaverifiedMay 18, 2026
Articulatio PlananounMWEa freely moving joint in which the articulations allow only gliding motionsverifiedMay 18, 2026
Articulatio RadiocarpeanounMWEa joint between the distal end of the radius and the proximal row of carpal bonesverifiedMay 18, 2026
Articulatio SpheroideanounMWEa freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other boneverifiedMay 18, 2026
Articulatio SynovialisnounMWEa joint so articulated as to move freelyverifiedMay 18, 2026
Articulatio TalocruralisnounMWEa gliding joint between the distal ends of the tibia and fibula and the proximal end of the talusverifiedMay 18, 2026
Articulatio TemporomandibularisnounMWEthe joint between the head of the lower jawbone and the temporal boneverifiedMay 18, 2026
Articulatio TrochoideanounMWEa freely moving joint in which movement is limited to rotationverifiedMay 18, 2026
ArticulationnounverifiedMay 15, 2026
Articulatornounsomeone who pronounces wordsverifiedMay 18, 2026
Articulatory SystemnounMWEthe system of joints in the bodyverifiedMay 18, 2026
Artifactnouna man-made object taken as a wholeverifiedMay 18, 2026
ArtificenounverifiedMay 15, 2026
Artificernounan enlisted man responsible for the upkeep of small arms and machine guns etc.verifiedMay 18, 2026
Artificial AdditivenounMWEan additive to food intended to improve its flavor or appearance or shelf-lifeverifiedMay 18, 2026
Artificial BloodnounMWEa liquid that can carry large amounts of oxygen and can serve as a temporary substitute for bloodverifiedMay 18, 2026
Artificial FlowernounMWEa handmade imitation of a blossomverifiedMay 18, 2026
Artificial HeartnounMWEa pump that replaces the natural heartverifiedMay 18, 2026
Artificial HorizonnounMWEa navigational instrument based on a gyroscopeverifiedMay 18, 2026
Artificial InseminationnounMWEthe introduction of semen into the oviduct or uterus by some means other than sexual intercourseverifiedMay 18, 2026
Artificial IntelligencenounMWEthe branch of computer science that deal with writing computer programs that can solve problems creativelyverifiedMay 18, 2026
Artificial Intelligence (ai) SystemnounMWEan engineered or machine-based system that can, for a given set of objectives, generate outputs such as predictions, recommendations, or decisions influencing real or virtual environments. AI systems are designed to operate with varying levels of autonomySystemMay 18, 2026
Artificial Intelligence LearningnounMWEThe ingestion of a corpus, application of semantic mapping, and relevant ontology of structured and/or unstructured data that yields inference and correlation leading to the creation of useful conclusive or predictive capabilities in a given knowledge domain. Strong AI learning also includes the capability of creating unique hypotheses, attributing data relevance, processing data relationships, and updating its own lines of inquiry to further the usefulness of its purpose.ProcessMay 18, 2026
Artificial JointnounMWEa metal or plastic part that is surgically implanted to replace a natural joint (possibly elbow or wrist but usually hip or knee)verifiedMay 18, 2026
Artificial KidneynounMWEa machine that uses dialysis to remove impurities and waste products from the bloodstream before returning the blood to the patient's bodyverifiedMay 18, 2026
Artificial LakenounMWElake used to store water for community useverifiedMay 18, 2026
Artificial LanguagenounMWEa language that is deliberately created for a specific purposeverifiedMay 18, 2026
Artificial Narrow Intelligence (ANI)nounMWE[an AI system that] is designed to accomplish a specific problem-solving or reasoning task.SystemMay 18, 2026
Artificial Neural NetworksnounMWEA computing system, made up of a number of simple, highly interconnected processing elements, which processes information by its dynamic state response to external inputs.SystemMay 18, 2026
Artificial RespirationnounMWEan emergency procedure whereby breathing is maintained artificiallyverifiedMay 18, 2026
Artificial SatellitenounMWEman-made equipment that orbits around the earth or the moonverifiedMay 18, 2026
Artificial SkinnounMWEa synthetic covering with two layers used experimentally to treat burn victimsverifiedMay 18, 2026
Artificialitynounthe quality of being produced by people and not occurring naturallyverifiedMay 18, 2026
Artillerynounlarge but transportable armamentverifiedMay 18, 2026
Artillery FirenounMWEfire delivered by artilleryverifiedMay 18, 2026
Artillery PlantnounMWEtropical American stingless nettle that discharges its pollen explosivelyverifiedMay 18, 2026
Artillery ShellnounMWEa shell fired by artilleryverifiedMay 18, 2026
Artillery UnitnounMWEan army unit that uses big gunsverifiedMay 18, 2026
Artillerymannouna serviceman in the artilleryverifiedMay 18, 2026
Artiodactyl MammalnounMWEplacental mammal having hooves with an even number of functional toes on each footverifiedMay 18, 2026
Artisannouna skilled worker who practices some trade or handicraftverifiedMay 18, 2026
Artisan's LiennounMWElien permitting an artisan to retain possession of a piece of work until has been paid forverifiedMay 18, 2026
Artistnouna person whose creative work shows sensitivity and imaginationverifiedMay 18, 2026
Artist's LoftnounMWEa factory loft that has been converted into an artist's workroom and living areaverifiedMay 18, 2026
Artist's ModelnounMWEa person who poses for a painter or sculptorverifiedMay 18, 2026
Artist's WorkroomnounMWEa studio especially for an artist or designerverifiedMay 18, 2026
Artistenouna public performer (a dancer or singer)verifiedMay 18, 2026
Artistic CreationnounMWEthe creation of beautiful or significant thingsverifiedMay 18, 2026
Artistic MovementnounMWEa group of artists who agree on general principlesverifiedMay 18, 2026
Artistic ProductionnounMWEthe creation of beautiful or significant thingsverifiedMay 18, 2026
Artistic StylenounMWEthe style of a particular artist or school or movementverifiedMay 18, 2026
Artistrynouna superior skill that you can learn by study and practice and observationverifiedMay 18, 2026
Artlessnessnouningenuousness by virtue of being free from artful deceitverifiedMay 18, 2026
Arts and CraftsnounMWEthe arts of decorative design and handicraftverifiedMay 18, 2026
Artworknounphotographs or other visual representations in a printed publicationverifiedMay 18, 2026
Arugulanounerect European annual often grown as a salad crop to be harvested when young and tenderverifiedMay 18, 2026
Arumnounstarch resembling sago that is obtained from cuckoopint rootverifiedMay 18, 2026