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Glossary · Nouns · A

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TermTypeDefinitionClassificationsUpdated
Admixturenounthe state of impairing the quality or reducing the value of somethingverifiedMay 18, 2026
Admonishernounsomeone who gives a warning so that a mistake can be avoidedverifiedMay 18, 2026
Admonishmentnouna firm rebukeverifiedMay 18, 2026
Admonitionnouncautionary advice about something imminent (especially imminent danger or other unpleasantness)verifiedMay 18, 2026
Adnexanounaccessory or adjoining anatomical parts or appendages to an organ (especially of the embryo)verifiedMay 18, 2026
Adnounnounan adjective used as a nounverifiedMay 18, 2026
Adonouna rapid active commotionverifiedMay 18, 2026
Adobenounthe clay from which adobe bricks are madeverifiedMay 18, 2026
Adobe BricknounMWEsun-dried brickverifiedMay 18, 2026
Adobe HousenounMWEa house built of sod or adobe laid in horizontal coursesverifiedMay 18, 2026
Adobe LilynounMWECalifornia herb with pinkish purple flowersverifiedMay 18, 2026
Adobonouna dish of marinated vegetables and meat or fishverifiedMay 18, 2026
Adolescencenounthe time period between the beginning of puberty and adulthoodverifiedMay 18, 2026
Adonic LinenounMWEa verse line with a dactyl followed by a spondee or trocheeverifiedMay 18, 2026
Adonisnounany handsome young manverifiedMay 18, 2026
Adopteenounsomeone (such as a child) who has been adoptedverifiedMay 18, 2026
Adopternouna person who adopts a child of other parents as his or her own childverifiedMay 18, 2026
AdoptionnounverifiedMay 15, 2026
Adoptive ParentnounMWEa person who adopts a child of other parents as his or her own childverifiedMay 18, 2026
Adorabilitynounextreme attractivenessverifiedMay 18, 2026
Adorablenessnounextreme attractivenessverifiedMay 18, 2026
Adorationnouna feeling of profound love and admirationverifiedMay 18, 2026
Adorernounsomeone who admires a young womanverifiedMay 18, 2026
Adornmentnounthe action of decorating yourself with something colorful and interestingverifiedMay 18, 2026
Adoxographynounfine writing in praise of trivial or base subjectsverifiedMay 18, 2026
Adrenal CortexnounMWEthe cortex of the adrenal glandverifiedMay 18, 2026
Adrenal Cortical SteroidnounMWEa steroid hormone produced by the adrenal cortex or synthesizedverifiedMay 18, 2026
Adrenal GlandnounMWEeither of a pair of complex endocrine glands situated near the kidneyverifiedMay 18, 2026
Adrenal MedullanounMWEthe medulla of the adrenal glandverifiedMay 18, 2026
Adrenalectomynounsurgical removal of one or both adrenal glandsverifiedMay 18, 2026
Adrenalinnouna catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin)verifiedMay 18, 2026
Adrenalinenouna catecholamine secreted by the adrenal medulla in response to stress, also known as epinephrineverifiedMay 18, 2026
Adrenaline JunkienounMWEsomeone who seems to be addicted to thrilling, often dangerous activities, like sky diving verifiedMay 18, 2026
Adrenarchenounthe increase in activity of the adrenal glands just before pubertyverifiedMay 18, 2026
Adrenergic Agonist EyedropnounMWEa treatment for glaucomaverifiedMay 18, 2026
Adrenergic DrugnounMWEdrug that has the effects of epinephrineverifiedMay 18, 2026
Adrenocorticotrophic HormonenounMWEa hormone produced by the anterior pituitary gland that stimulates the adrenal cortexverifiedMay 18, 2026
Adrenocorticotrophinnouna hormone produced by the anterior pituitary gland that stimulates the adrenal cortexverifiedMay 18, 2026
Adrenocorticotropic HormonenounMWEa hormone produced by the anterior pituitary gland that stimulates the adrenal cortexverifiedMay 18, 2026
Adrenocorticotropinnouna hormone produced by the anterior pituitary gland that stimulates the adrenal cortexverifiedMay 18, 2026
Adrenosteronenouna steroid having androgenic activityverifiedMay 18, 2026
Adroitnessnounskillful performance or ability without difficultyverifiedMay 18, 2026
Adsorbent MaterialnounMWEa material having capacity or tendency to adsorb another substanceverifiedMay 18, 2026
Adsorptionnounthe accumulation of molecules of a gas to form a thin film on the surface of a solidverifiedMay 18, 2026
Adsuki BeannounMWEbushy annual widely grown in China and Japan for the flour made from its seedsverifiedMay 18, 2026
Adulationnounservile flatteryverifiedMay 18, 2026
Adulatornouna person who uses flatteryverifiedMay 18, 2026
Adult BodynounMWEthe body of an adult human beingverifiedMay 18, 2026
Adult EducationnounMWEa course (via lectures or correspondence) for adults who are not otherwise engaged in formal studyverifiedMay 18, 2026
Adult FemalenounMWEan adult female person (as opposed to a man)verifiedMay 18, 2026
Adult Female BodynounMWEthe body of an adult womanverifiedMay 18, 2026
Adult IntelligencenounMWEthe average IQ of the adults in a given populationverifiedMay 18, 2026
Adult MalenounMWEan adult person who is male (as opposed to a woman)verifiedMay 18, 2026
Adult Male BodynounMWEthe body of an adult manverifiedMay 18, 2026
Adult Respiratory Distress SyndromenounMWEacute lung injury characterized by coughing and ralesverifiedMay 18, 2026
Adult ToothnounMWEany of the 32 teeth that replace the deciduous teeth of early childhood and can last until old ageverifiedMay 18, 2026
Adult-Onset DiabetesnounMWEmild form of diabetes mellitus that develops gradually in adultsverifiedMay 18, 2026
Adult-Onset Diabetes MellitusnounMWEmild form of diabetes mellitus that develops gradually in adultsverifiedMay 18, 2026
AdulterationnounverifiedMay 15, 2026
Adulteratornounany substance that lessens the purity or effectiveness of a substanceverifiedMay 18, 2026
Adulterernounsomeone who commits adultery or fornicationverifiedMay 18, 2026
Adulteressnouna woman adultererverifiedMay 18, 2026
Adulterynounextramarital sex that willfully and maliciously interferes with marriage relationsverifiedMay 18, 2026
Adulthoodnounthe period of time in your life after your physical growth has stopped and you are fully developedverifiedMay 18, 2026
Adumbrationnouna sketchy or imperfect or faint representationverifiedMay 18, 2026
Advance Death BenefitnounMWEa percentage of death benefits paid directly to policy holders having a short life expectancy (usually 6 months)verifiedMay 18, 2026
Advanced Encryption StandardnounMWEThe Advanced Encryption Standard specifies a U.S. government-approved cryptographic algorithm that can be used to protect electronic data. The AES algorithm is a symmetric block cipher that can encrypt (encipher) and decrypt (decipher) information. This standard specifies the Rijndael algorithm, a symmetric block cipher that can process data blocks of 128 bits, using cipher keys with lengths of 128, 192, and 256 bits.ControlRegulatedMay 9, 2026
Advanced Key ProcessornounMWEA cryptographic device that performs all cryptographic functions for a management client node and contains the interfaces to 1) exchange information with a client platform, 2) interact with fill devices, and 3) connect a client platform securely to the primary services node (PRSN).PhysicalRegulatedCUIMay 9, 2026
Advanced persistent threatnounMWEAn adversary that possesses sophisticated levels of expertise and significant resources which allow it to create opportunities to achieve its objectives using multiple attack vectors (NIST SP800-61) Scope Note: The APT: 1. pursues its objectives repeatedly over an extended period of time 2. adapts to defenders’ efforts to resist it 3. is determined to maintain the level of interaction needed to execute its objectivesThreatMay 9, 2026
Advancementnounencouragement of the progress or growth or acceptance of somethingverifiedMay 18, 2026
Advancernounsomeone who advancesverifiedMay 18, 2026
Advantageousnessnounthe quality of being encouraging or promising of a successful outcomeverifiedMay 18, 2026
Advectionnoun(meteorology) the horizontal transfer of heat or other atmospheric propertiesverifiedMay 18, 2026
Adventnounarrival that has been awaited (especially of something momentous)verifiedMay 18, 2026
Adventistnouna member of Christian denomination that expects the imminent advent of ChristverifiedMay 18, 2026
Adventitianounan enveloping or covering membrane or layer of body tissueverifiedMay 18, 2026
Adventitious RootnounMWEroot growing in an unusual location e.g. from a stemverifiedMay 18, 2026
Adventure StorynounMWEa story of an adventureverifiedMay 18, 2026
Adventurernounsomeone who travels into little known regions (especially for some scientific purpose)verifiedMay 18, 2026
Adventuressnouna woman adventurerverifiedMay 18, 2026
Adventurismnounrecklessness in politics or foreign affairsverifiedMay 18, 2026
Adventurousnessnounthe trait of being adventurousverifiedMay 18, 2026
Adverbnouna word that modifies something other than a nounverifiedMay 18, 2026
Adversarial ExamplenounMWEMachine learning input sample formed by applying a small but intentionally worst-case perturbation ... to a clean example, such that the perturbed input causes a learned model to output an incorrect answer.ThreatMay 18, 2026
AdversarynounIndividual, group, organization, or government that conducts or has the intent to conduct detrimental activities.ThreatMay 9, 2026
Adversative ConjunctionnounMWEthe conjunctive relation of units that expresses the opposition of their meaningsverifiedMay 18, 2026
Adverse Action NoticenounMWEA notification of i) a refusal to grant credit in substantially the amount or on substantially the terms requested in an application unless the creditor makes a counteroffer (to grant credit in a different amount or on other terms) and the applicant uses or expressly accepts the credit offered; ii) A termination of an account or an unfavorable change in the terms of an account that does not affect all or substantially all of a class of the creditor's accounts or iii) A refusal to increase the amount of credit available to an applicant who has made an application for an increase.ArtifactRegulatedPIIMay 18, 2026
Adverse Impact RationounMWEprivileged and unprivileged groups receiving different outcomes irrespective of the decision maker’s intent and irrespective of the decision-making procedure. Quantified as the ratio: disparate impact ratio = 𝑃( 𝑦̂ (𝑋) = fav ∣∣ 𝑍 = unpr )/𝑃( 𝑦̂ (𝑋) = fav ∣∣ 𝑍 = priv ) where 𝑃(𝑦̂ (𝑋) = fav) is the favorable label, (𝑍 = priv) is the privileged group, and (𝑍 = unpr) is the unprivileged group.MetricRegulatedMay 18, 2026
Adverse OpinionnounMWEan opinion concerning financial statements (usually based on an audit by a CPA) that the statements as a whole do not present results fairly or are not in conformity with the generally accepted accounting practices of the United StatesverifiedMay 18, 2026
Adverse WitnessnounMWEa witness whose relationship to the opposing party is such that his or her testimony may be prejudiced against the opposing partyverifiedMay 18, 2026
Adversitynouna state of misfortune or afflictionverifiedMay 18, 2026
Advertencenounthe process of being heedfulverifiedMay 18, 2026
Advertencynounthe process of being heedfulverifiedMay 18, 2026
Advertisementnouna public promotion of some product or serviceverifiedMay 18, 2026
Advertisernounsomeone whose business is advertisingverifiedMay 18, 2026
Advertisingnounthe business of drawing public attention to goods and servicesverifiedMay 18, 2026
Advertising AgencynounMWEan agency that designs advertisement to call public attention to its clientsverifiedMay 18, 2026
Advertising CampaignnounMWEan organized program of advertisementsverifiedMay 18, 2026
Advertising DepartmentnounMWEthe division of a business that is responsible for advertisingverifiedMay 18, 2026
Advertising DivisionnounMWEthe division of a business that is responsible for advertisingverifiedMay 18, 2026