| abaya | (noun) (Arabic) a loose black robe from head to toe; traditionally worn by Muslim women | - |
|---|
| abbacy | (noun) the jurisdiction or office of an abbot | - |
|---|
| abbey | (noun) a monastery ruled by an abbot | - |
|---|
| (noun) a convent ruled by an abbess | - |
| (noun) a church associated with a monastery or convent | - |
| abdominoplasty | (noun) cosmetic surgery of the abdomen to remove wrinkles and tighten the skin over the stomach | Synonyms: tummy tuck |
|---|
| aberrancy | (noun) a state or condition markedly different from the norm | Synonyms: aberrance, aberration, deviance |
|---|
| abeyance | (noun) temporary cessation or suspension | Synonyms: suspension |
|---|
| abhenry | (noun) a unit of inductance equal to one billionth of a henry | - |
|---|
| ability | (noun) the quality of being able to perform; a quality that permits or facilitates achievement or accomplishment | - |
|---|
| (noun) possession of the qualities (especially mental qualities) required to do something or get something done | Synonyms: power |
| abiotrophy | (noun) a loss of vitality and a degeneration of cells and tissues not due to any apparent injury | - |
|---|
| abnormalcy | (noun) an abnormal physical condition resulting from defective genes or developmental deficiencies | Synonyms: abnormality |
|---|
| abnormality | (noun) behavior that breaches the rule or etiquette or custom or morality | Synonyms: irregularity |
|---|
| (noun) marked strangeness as a consequence of being abnormal | Synonyms: freakishness |
| (noun) retardation sufficient to fall outside the normal range of intelligence | Synonyms: mental defectiveness |
| (noun) an abnormal physical condition resulting from defective genes or developmental deficiencies | Synonyms: abnormalcy |
| absorbency | (noun) the property of being absorbent | - |
|---|
| absorptivity | (noun) (physics) the property of a body that determines the fraction of the incident radiation or sound flux absorbed or absorbable by the body | Synonyms: absorption factor |
|---|
| abstrusity | (noun) wisdom that is recondite and abstruse and profound | Synonyms: abstruseness, profoundness, profundity, reconditeness |
|---|
| absurdity | (noun) a ludicrous folly | Synonyms: fatuity, fatuousness, silliness |
|---|
| (noun) a message whose content is at variance with reason | Synonyms: absurdness, ridiculousness |
| abysm | (noun) a bottomless gulf or pit; any unfathomable (or apparently unfathomable) cavity or chasm or void extending below (often used figuratively) | Synonyms: abyss |
|---|
| abyss | (noun) a bottomless gulf or pit; any unfathomable (or apparently unfathomable) cavity or chasm or void extending below (often used figuratively) | Synonyms: abysm |
|---|
| academy | (noun) a learned establishment for the advancement of knowledge | - |
|---|
| (noun) a secondary school (usually private) | - |
| (noun) a school for special training | - |
| (noun) an institution for the advancement of art or science or literature | Synonyms: honorary society |
| acanthocyte | (noun) an abnormal red blood cell that has thorny projections of protoplasm | - |
|---|
| acanthocytosis | (noun) the presence of acanthocytes in the blood stream (as in abetalipoproteinemia) | - |
|---|
| acantholysis | (noun) a breakdown of a cell layer in the epidermis (as in pemphigus) | - |
|---|
| acanthopterygian | (noun) a teleost fish with fins that are supported by sharp inflexible rays | Synonyms: spiny-finned fish |
|---|
| acaryote | (noun) a cell without a nucleus (as an erythrocyte) | Synonyms: akaryocyte, akaryote |
|---|
| acceptability | (noun) satisfactoriness by virtue of conforming to approved standards | Synonyms: acceptableness |
|---|
| accessary | (noun) someone who helps another person commit a crime | Synonyms: accessory |
|---|
| accessibility | (noun) the quality of being at hand when needed | Synonyms: availability, availableness, handiness |
|---|
| (noun) the attribute of being easy to meet or deal with | Synonyms: approachability |
| accessory | (noun) a supplementary component that improves capability | Synonyms: add-on, appurtenance, supplement |
|---|
| (noun) clothing that is worn or carried, but not part of your main clothing | Synonyms: accouterment, accoutrement |
| (noun) someone who helps another person commit a crime | Synonyms: accessary |
| acclivity | (noun) an upward slope or grade (as in a road) | Synonyms: ascent, climb, raise, rise, upgrade |
|---|
| accompanyist | (noun) a person who provides musical accompaniment (usually on a piano) | Synonyms: accompanist |
|---|
| accountability | (noun) responsibility to someone or for some activity | Synonyms: answerability, answerableness |
|---|
| accountancy | (noun) the occupation of maintaining and auditing records and preparing financial reports for a business | Synonyms: accounting |
|---|
| accuracy | (noun) the quality of being near to the true value | Synonyms: truth |
|---|
| (noun) (mathematics) the number of significant figures given in a number | - |
| acephaly | (noun) absence of the head (as in the development of some monsters) | Synonyms: acephalia, acephalism |
|---|
| acerbity | (noun) a rough and bitter manner | Synonyms: acrimony, bitterness, jaundice, tartness, thorniness |
|---|
| (noun) a sharp sour taste | Synonyms: tartness |
| (noun) a sharp bitterness | - |
| acetaldehyde | (noun) a colorless volatile water-soluble liquid aldehyde used chiefly in the manufacture of acetic acid and perfumes and drugs | Synonyms: ethanal |
|---|
| acetyl | (noun) the organic group of acetic acid (CH3CO-) | Synonyms: acetyl group, acetyl radical, ethanoyl group, ethanoyl radical |
|---|
| acetylation | (noun) the process of introducing an acetyl group into a compound | - |
|---|
| acetylcholine | (noun) a neurotransmitter that is a derivative of choline; released at the ends of nerve fibers in the somatic and parasympathetic nervous systems | - |
|---|
| acetylene | (noun) a colorless flammable gas used chiefly in welding and in organic synthesis | Synonyms: alkyne, ethyne |
|---|
| achievability | (noun) the state of being achievable | Synonyms: attainability, attainableness |
|---|
| achlorhydria | (noun) an abnormal deficiency or absence of free hydrochloric acid in the gastric juice; often associated with severe anemias and cancer of the stomach | - |
|---|
| achondroplasty | (noun) an inherited skeletal disorder beginning before birth; cartilage is converted to bone resulting in dwarfism | Synonyms: achondroplasia, chondrodystrophy, osteosclerosis congenita |
|---|
| achromaticity | (noun) the visual property of being without chromatic color | Synonyms: achromatism, colorlessness, colourlessness |
|---|
| achylia | (noun) absence of gastric juices (partial or complete) | Synonyms: achylia gastrica |
|---|
| acidimetry | (noun) volumetric analysis using standard solutions of acids to measure the amount of a base present | - |
|---|
| acidity | (noun) pH values below 7 | - |
|---|
| (noun) the property of being acidic | Synonyms: sour, sourness |
| (noun) the taste experience when something acidic is taken into the mouth | Synonyms: acidulousness |
| acolyte | (noun) someone who assists a priest or minister in a liturgical service; a cleric ordained in the highest of the minor orders in the Roman Catholic Church but not in the Anglican Church or the Eastern Orthodox Churches | - |
|---|
| acridity | (noun) extreme bitterness | Synonyms: acridness |
|---|
| (noun) the quality of being sharply disagreeable in language or tone | Synonyms: acridness |
| (noun) having an acrid smell | - |
| acrimony | (noun) a rough and bitter manner | Synonyms: acerbity, bitterness, jaundice, tartness, thorniness |
|---|
| acrocephaly | (noun) a congenital abnormality of the skull; the top of the skull assumes a cone shape | Synonyms: oxycephaly |
|---|
| acrocyanosis | (noun) cyanosis of the extremities; can occur when a spasm of the blood vessels is caused by exposure to cold or by strong emotion | Synonyms: Raynaud's sign |
|---|
| acromegaly | (noun) enlargement of bones of hands and feet and face; often accompanied by headache and muscle pain and emotional disturbances; caused by overproduction of growth hormone by the anterior pituitary gland (due to a tumor) | Synonyms: acromegalia |
|---|
| acromyotonia | (noun) myotonia of the extremities only; causes spastic deformity of the hand or foot | - |
|---|
| acronym | (noun) a word formed from the initial letters of the several words in the name and pronounced as one word | Synonyms: initialism |
|---|
| acrophony | (noun) naming a letter of the alphabet by using a word whose initial sound is the sound represented by that letter | - |
|---|
| acrylamide | (noun) a white crystalline amide of propenoic acid can damage the nervous system and is carcinogenic in laboratory animals | - |
|---|
| acrylate | (noun) a salt or ester of propenoic acid | Synonyms: propenoate |
|---|
| acrylic | (noun) a synthetic fabric made from polyacrylonitrile | - |
|---|
| (noun) used especially by artists | Synonyms: acrylic paint |
| (noun) a glassy thermoplastic; can be cast and molded or used in coatings and adhesives | Synonyms: acrylate resin, acrylic resin |
| (noun) polymerized from acrylonitrile | Synonyms: acrylic fiber |
| acrylonitrile | (noun) a colorless liquid unsaturated nitrile made from propene | Synonyms: propenonitrile, vinyl cyanide |
|---|
| actinometry | (noun) measuring the intensity of electromagnetic radiation (especially of the sun's rays) | - |
|---|
| actinomyces | (noun) soil-inhabiting saprophytes and disease-producing plant and animal parasites | - |
|---|
| actinomycete | (noun) any bacteria (some of which are pathogenic for humans and animals) belonging to the order Actinomycetales | - |
|---|
| actinomycin | (noun) any of various red antibiotics isolated from soil bacteria | - |
|---|
| actinomycosis | (noun) disease of cattle that can be transmitted to humans; results from infection with actinomycetes; characterized by hard swellings that exude pus through long sinuses | - |
|---|
| actinomyxidian | (noun) of or relating to parasites of worms | - |
|---|
| actinotherapy | (noun) (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance | Synonyms: irradiation, radiation, radiation therapy, radiotherapy |
|---|
| activity | (noun) any specific behavior | - |
|---|
| (noun) the trait of being active; moving or acting rapidly and energetically | Synonyms: activeness |
| (noun) an organic process that takes place in the body | Synonyms: bodily function, bodily process, body process |
| (noun) a process existing in or produced by nature (rather than by the intent of human beings) | Synonyms: action, natural action, natural process |
| (noun) the state of being active | Synonyms: action, activeness |
| (noun) (chemistry) the capacity of a substance to take part in a chemical reaction | - |
| actomyosin | (noun) a protein complex in muscle fibers; composed of myosin and actin; shortens when stimulated and causes muscle contractions | - |
|---|
| actuality | (noun) the state of actually existing objectively | - |
|---|
| actuary | (noun) someone versed in the collection and interpretation of numerical data (especially someone who uses statistics to calculate insurance premiums) | Synonyms: statistician |
|---|
| acuity | (noun) a quick and penetrating intelligence | Synonyms: acuteness, keenness, sharpness |
|---|
| (noun) sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart) | Synonyms: sharp-sightedness, visual acuity |
| acyclovir | (noun) an oral antiviral drug (trade name Zovirax) used to treat genital herpes; does not cure the disease but relieves the symptoms | Synonyms: Zovirax |
|---|
| acyl | (noun) any group or radical of the form RCO- where R is an organic group | Synonyms: acyl group |
|---|
| acylation | (noun) the process of introducing an acyl group into a compound | - |
|---|
| acylglycerol | (noun) an ester of glycerol and fatty acids that occurs naturally as fats and fatty oils | Synonyms: glyceride |
|---|
| adactylia | (noun) congenital absence of fingers and/or toes | Synonyms: adactylism, adactyly |
|---|
| adactylism | (noun) congenital absence of fingers and/or toes | Synonyms: adactylia, adactyly |
|---|
| adactyly | (noun) congenital absence of fingers and/or toes | Synonyms: adactylia, adactylism |
|---|
| adaptability | (noun) the ability to change (or be changed) to fit changed circumstances | - |
|---|
| adenohypophysis | (noun) the anterior lobe of the pituitary body; primarily glandular in nature | Synonyms: anterior pituitary, anterior pituitary gland |
|---|
| adenoidectomy | (noun) surgical removal of the adenoids; commonly performed along with tonsillectomy | - |
|---|
| adenomegaly | (noun) gland enlargement | - |
|---|
| adenomyosarcoma | (noun) malignant renal tumor of young children characterized by hypertension and blood in the urine and the presence of a palpable mass | Synonyms: embryoma of the kidney, nephroblastoma, Wilms' tumor, Wilms tumour |
|---|
| adenomyosis | (noun) the presence of endometrium elsewhere than in the lining of the uterus; causes premenstrual pain and dysmenorrhea | Synonyms: endometriosis |
|---|
| adenopathy | (noun) a glandular disease or enlargement of glandular tissue (especially of the lymph glands) | - |
|---|
| adequacy | (noun) the quality of being able to meet a need satisfactorily: | Synonyms: adequateness |
|---|
| (noun) the quality of being sufficient for the end in view | Synonyms: sufficiency |
| adhocracy | (noun) an organization with little or no structure | - |
|---|
| adiabaticity | (noun) The condition of occurring without gain or loss of heat (and thus with no change in entropy, in the quasistatic approximation). | - |
|---|
| adiposity | (noun) having the property of containing fat | Synonyms: adiposeness, fattiness |
|---|
| adjacency | (noun) the attribute of being so near as to be touching | Synonyms: contiguity, contiguousness |
|---|
| admirability | (noun) admirable excellence | Synonyms: admirableness, wonderfulness |
|---|
| admiralty | (noun) the office of admiral | - |
|---|
| (noun) the department in charge of the navy (as in Great Britain) | - |
| admissibility | (noun) acceptability by virtue of being admissible | - |
|---|
| adorability | (noun) extreme attractiveness | Synonyms: adorableness |
|---|
| adoxography | (noun) fine writing in praise of trivial or base subjects | - |
|---|
| adrenalectomy | (noun) surgical removal of one or both adrenal glands | Synonyms: suprarenalectomy |
|---|
| adultery | (noun) extramarital sex that willfully and maliciously interferes with marriage relations | Synonyms: criminal conversation, fornication |
|---|
| adversary | (noun) someone who offers opposition | Synonyms: antagonist, opponent, opposer, resister |
|---|
| adversity | (noun) a stroke of ill fortune; a calamitous event | - |
|---|
| (noun) a state of misfortune or affliction | Synonyms: hard knocks, hardship |
| advertency | (noun) the process of being heedful | Synonyms: advertence |
|---|