| acathexia | (noun) an inability to retain bodily secretions | - |
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| acathexis | (noun) (psychoanalysis) a lack of cathexis; a condition in which significant objects or memories arouse no emotion in an individual | - |
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| actinomyxidian | (noun) of or relating to parasites of worms | - |
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| aflatoxin | (noun) a potent carcinogen from the fungus Aspergillus; can be produced and stored for use as a bioweapon | - |
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| alexia | (noun) inability to perceive written words | Synonyms: visual aphasia, word blindness |
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| alexic | (noun) a person with alexia | - |
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| amoxicillin | (noun) an antibiotic; a semisynthetic oral penicillin (trade names Amoxil and Larotid and Polymox and Trimox and Augmentin) used to treat bacterial infections | Synonyms: Amoxil, Augmentin, Larotid, Polymox, Trimox |
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| amphimixis | (noun) union of sperm and egg in sexual reproduction | - |
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| (noun) reproduction involving the union or fusion of a male and a female gamete | Synonyms: sexual reproduction |
| amyxia | (noun) a condition in which no mucus in produced | - |
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| anaphylaxis | (noun) hypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from prior contact with a substance | - |
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| anatoxin | (noun) a bacterial toxin that has been weakened until it is no longer toxic but is strong enough to induce the formation of antibodies and immunity to the specific disease caused by the toxin | Synonyms: toxoid |
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| anorexia | (noun) a prolonged disorder of eating due to loss of appetite | - |
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| anorexic | (noun) a person suffering from anorexia nervosa | Synonyms: anorectic |
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| anoxia | (noun) severe hypoxia; absence of oxygen in inspired gases or in arterial blood or in the tissues | - |
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| antioxidant | (noun) substance that inhibits oxidation or inhibits reactions promoted by oxygen or peroxides | - |
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| antitoxin | (noun) an antibody that can neutralize a specific toxin | - |
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| anxiety | (noun) a vague unpleasant emotion that is experienced in anticipation of some (usually ill-defined) misfortune | - |
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| (noun) (psychiatry) a relatively permanent state of worry and nervousness occurring in a variety of mental disorders, usually accompanied by compulsive behavior or attacks of panic | Synonyms: anxiousness |
| anxiolytic | (noun) a tranquilizer used to relieve anxiety and reduce tension and irritability | Synonyms: antianxiety drug, anxiolytic drug, minor tranquilizer, minor tranquilliser, minor tranquillizer |
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| anxiousness | (noun) a feeling of mild anxiety about possible developments | Synonyms: disquiet |
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| (noun) (psychiatry) a relatively permanent state of worry and nervousness occurring in a variety of mental disorders, usually accompanied by compulsive behavior or attacks of panic | Synonyms: anxiety |
| apomixis | (noun) any of several kinds of reproduction without fertilization | - |
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| approximation | (noun) the act of bringing near or bringing together especially the cut edges of tissue | Synonyms: bringing close together |
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| (noun) the quality of coming near to identity (especially close in quantity) | - |
| (noun) an approximate calculation of quantity or degree or worth | Synonyms: estimate, estimation, idea |
| (noun) an imprecise or incomplete account | - |
| apraxia | (noun) inability to make purposeful movements | - |
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| areflexia | (noun) absence of a reflex; a sign of possible nerve damage | - |
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| asphyxia | (noun) a condition in which insufficient or no oxygen and carbon dioxide are exchanged on a ventilatory basis; caused by choking or drowning or electric shock or poison gas | - |
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| asphyxiation | (noun) killing by depriving of oxygen | Synonyms: suffocation |
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| (noun) the condition of being deprived of oxygen (as by having breathing stopped) | Synonyms: suffocation |
| asphyxiator | (noun) a manually operated device for extinguishing small fires | Synonyms: extinguisher, fire extinguisher |
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| ataraxia | (noun) peace of mind | - |
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| ataraxis | (noun) the absence of mental stress or anxiety | Synonyms: heartsease, peace, peace of mind, peacefulness, repose, serenity |
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| ataxia | (noun) inability to coordinate voluntary muscle movements; unsteady movements and staggering gait | Synonyms: ataxy, dyssynergia, motor ataxia |
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| autosexing | (noun) (especially of domestic fowl) breeding to reveal differential sex characteristics at hatching | - |
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| auxiliary | (noun) someone who acts as assistant | Synonyms: aide |
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| auxin | (noun) a plant hormone that promotes root formation and bud growth | - |
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| axil | (noun) the upper angle between an axis and an offshoot such as a branch or leafstalk | - |
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| axilla | (noun) the hollow under the arm where it is joined to the shoulder | Synonyms: armpit, axillary cavity, axillary fossa |
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| axiology | (noun) the study of values and value judgments | - |
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| axiom | (noun) a saying that is widely accepted on its own merits | Synonyms: maxim |
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| (noun) (logic) a proposition that is not susceptible of proof or disproof; its truth is assumed to be self-evident | - |
| axis | (noun) the center around which something rotates | Synonyms: axis of rotation |
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| (noun) the 2nd cervical vertebra; serves as a pivot for turning the head | Synonyms: axis vertebra |
| (noun) a straight line through a body or figure that satisfies certain conditions | - |
| (noun) a group of countries in special alliance | Synonyms: bloc |
| (noun) the main stem or central part about which plant organs or plant parts such as branches are arranged | - |
| bauxite | (noun) a clay-like mineral; the chief ore of aluminum; composed of aluminum oxides and aluminum hydroxides; used as an abrasive and catalyst | - |
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| bonxie | (noun) gull-like jaeger of northern seas | Synonyms: skua |
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| botulismotoxin | (noun) potent bacterial toxin produced by the bacterium Clostridium botulinum that causes botulism; can be used as a bioweapon | Synonyms: botulin, botulinus toxin |
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| boxing | (noun) fighting with the fists | Synonyms: fisticuffs, pugilism |
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| (noun) the enclosure of something in a package or box | Synonyms: packing |
| bruxism | (noun) involuntarily or unconsciously clenching or grinding the teeth, typically during sleep | - |
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| bulimarexia | (noun) a disorder of eating in which the person alternates between strong craving for food and aversion to food; characterized by excessive eating followed by periods of fasting or self-induced vomiting | Synonyms: binge-purge syndrome, binge-vomit syndrome, bulimia nervosa |
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| cachexia | (noun) any general reduction in vitality and strength of body and mind resulting from a debilitating chronic disease | Synonyms: cachexy, wasting |
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| catalexis | (noun) the absence of a syllable in the last foot of a line or verse | - |
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| cathexis | (noun) (psychoanalysis) the libidinal energy invested in some idea or person or object | Synonyms: charge |
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| cefadroxil | (noun) a cephalosporin antibiotic (trade name Ultracef) | Synonyms: Ultracef |
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| cefotaxime | (noun) a parenteral cephalosporin (trade name Claforan) used for severe infections of the lungs or throat or ears or urinary tract | Synonyms: Claforan |
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| cefuroxime | (noun) a cephalosporin that can be given parenterally (trade name Zinacef) or orally by tablets (trade name Ceftin); indicated for infections of the lungs or throat or ears or urinary tract or meninges | Synonyms: Ceftin, Zinacef |
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| celecoxib | (noun) a Cox-2 inhibitor (trade name Celebrex) that relieves pain and inflammation without harming the digestive tract | Synonyms: Celebrex |
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| cephalexin | (noun) a cephalosporin antibiotic (trade names Keflex and Keflin and Keftab) commonly prescribed for mild to moderately severe infections of the skin or ears or throat or lungs or urinary tract | Synonyms: Keflex, Keflin, Keftab |
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| chemotaxis | (noun) movement by a cell or organism in reaction to a chemical stimulus | - |
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| chlordiazepoxide | (noun) a tranquilizer (trade names Librium and Libritabs) used in the treatment of alcoholism | Synonyms: Libritabs, Librium |
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| chlorhexidine | (noun) a long-lasting liquid antiseptic; used by surgeons to wash their hands before performing surgery | - |
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| coaxing | (noun) flattery designed to gain favor | Synonyms: blarney, soft soap, sweet talk |
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| coexistence | (noun) existing peacefully together | - |
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| complexifier | (noun) someone makes things complex | - |
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| complexion | (noun) the coloring of a person's face | Synonyms: skin color, skin colour |
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| (noun) (obsolete) a combination of elements (of dryness and warmth or of the four humors) that was once believed to determine a person's health and temperament | - |
| (noun) texture and appearance of the skin of the face | - |
| (noun) a point of view or general attitude or inclination | - |
| (noun) a combination that results from coupling or interlinking | - |
| complexity | (noun) the quality of being intricate and compounded | Synonyms: complexness |
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| connexion | (noun) the act of bringing two things into contact (especially for communication) | Synonyms: connection, joining |
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| (noun) shifting from one form of transportation to another | Synonyms: connection |
| (noun) an instrumentality that connects | Synonyms: connecter, connection, connective, connector |
| (noun) the process of bringing ideas or events together in memory or imagination | Synonyms: association, connection |
| (noun) a relation between things or events (as in the case of one causing the other or sharing features with it) | Synonyms: connectedness, connection |
| (noun) a connecting shape | Synonyms: connection, link |
| convexity | (noun) the property possessed by a convex shape | Synonyms: convexness |
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| (noun) a shape that curves or bulges outward | Synonyms: convex shape |
| crucifixion | (noun) the act of executing by a method widespread in the ancient world; the victim's hands and feet are bound or nailed to a cross | - |
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| (noun) the infliction of extremely painful punishment or suffering | Synonyms: excruciation |
| cytotoxicity | (noun) the degree to which something is toxic to living cells | - |
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| cytotoxin | (noun) any substance that has a toxic effect on cells | - |
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| deflexion | (noun) a turning aside (of your course or attention or concern) | Synonyms: deflection, deviation, digression, divagation, diversion |
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| (noun) the property of being bent or deflected | Synonyms: bending, deflection |
| (noun) the amount by which a propagating wave is bent | Synonyms: deflection, refraction |
| (noun) the movement of the pointer or pen of a measuring instrument from its zero position | Synonyms: deflection |
| deixis | (noun) the function of pointing or specifying from the perspective of a participant in an act of speech or writing; aspects of a communication whose interpretation depends on knowledge of the context in which the communication occurs | - |
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| detoxification | (noun) treatment for poisoning by neutralizing the toxic properties (normally a function of the liver) | - |
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| (noun) a treatment for addiction to drugs or alcohol intended to remove the physiological effects of the addictive substances | - |
| diazoxide | (noun) vasodilator (trade name Hyperstat) used to treat severe hypertension | Synonyms: Hyperstat |
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| digitoxin | (noun) digitalis preparation used to treat congestive heart failure or cardiac arrhythmia | - |
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| digoxin | (noun) digitalis preparation (trade name Lanoxin) used to treat congestive heart failure or cardiac arrhythmia; helps the heart beat more forcefully | Synonyms: Lanoxin |
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| dimethylglyoxime | (noun) a compound used in analysis as a precipitant for palladium or nickel | - |
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| dioxide | (noun) an oxide containing two atoms of oxygen in the molecule | - |
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| dioxin | (noun) any of several toxic or carcinogenic hydrocarbons that occur as impurities in herbicides | - |
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| dixie | (noun) a large metal pot (12 gallon camp kettle) for cooking; used in military camps | - |
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| dorsiflexion | (noun) the act of bending backward (of the body or a body part) | - |
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| doxing | (noun) Releasing someone's personal information on the Web with the intention of causing harassment | - |
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| dyslexia | (noun) impaired ability to learn to read | - |
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| dyslexic | (noun) a person who has dyslexia | Synonyms: dyslectic |
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| elixir | (noun) a substance believed to cure all ills | - |
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| (noun) a sweet flavored liquid (usually containing a small amount of alcohol) used in compounding medicines to be taken by mouth in order to mask an unpleasant taste | - |
| (noun) hypothetical substance that the alchemists believed to be capable of changing base metals into gold | Synonyms: philosopher's stone, philosophers' stone |
| endotoxin | (noun) a toxin that is confined inside the microorganisms and is released only when the microorganisms are broken down or die | - |
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| enterotoxin | (noun) a cytotoxin specific for the cells of the intestinal mucosa | - |
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| epiplexis | (noun) a rhetorical device in which the speaker reproaches the audience in order to incite or convince them | - |
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| epistaxis | (noun) bleeding from the nose | Synonyms: nosebleed |
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| ethosuximide | (noun) an anticonvulsant drug (trade names Emeside and Zarontin) used to treat petit mal epilepsy | Synonyms: Emeside, Zarontin |
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| excitotoxin | (noun) any of a group of neurologically active compounds, such as glutamate and aspartame, that have detrimental excitatory effects on the central nervous system when taken in high concentrations. | - |
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| exigency | (noun) a sudden unforeseen crisis (usually involving danger) that requires immediate action | Synonyms: emergency, pinch |
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| (noun) a pressing or urgent situation | - |
| (noun) that which is required in a particular situation —usually used in plural. | - |
| exiguity | (noun) the quality of being meager | Synonyms: leanness, meagerness, meagreness, poorness, scantiness, scantness |
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| exile | (noun) the act of expelling a person from their native land | Synonyms: deportation, expatriation, transportation |
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| (noun) a person who is expelled from home or country by authority | Synonyms: deportee |
| (noun) a person who is voluntarily absent from home or country | Synonyms: expat, expatriate |
| existence | (noun) everything that exists anywhere | Synonyms: cosmos, creation, macrocosm, universe, world |
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| (noun) the state or fact of existing | Synonyms: being, beingness, face of the earth |
| existentialism | (noun) (philosophy) a 20th-century philosophical movement chiefly in Europe; assumes that people are entirely free and thus responsible for what they make of themselves | Synonyms: existential philosophy, existentialist philosophy |
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| existentialist | (noun) a philosopher who emphasizes freedom of choice and personal responsibility but who regards human existence in a hostile universe as unexplainable | Synonyms: existential philosopher, existentialist philosopher |
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| exit | (noun) the act of going out | - |
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| (noun) an opening that permits escape or release | Synonyms: issue, outlet, way out |
| (noun) euphemistic expressions for death | Synonyms: departure, expiration, going, loss, passing, release |
| exotoxin | (noun) a toxin that is secreted by microorganisms into the surrounding medium | - |
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| fixing | (noun) the act of putting something in working order again | Synonyms: fix, fixture, mend, mending, repair, reparation |
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| (noun) the sterilization of an animal | Synonyms: altering, neutering |
| (noun) (histology) the preservation and hardening of a tissue sample to retain as nearly as possible the same relations they had in the living body | Synonyms: fixation |
| (noun) restraint that attaches to something or holds something in place | Synonyms: fastener, fastening, holdfast |
| fixings | (noun) the accessories that normally accompany (something or some activity) | Synonyms: trimmings |
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| (noun) food that is a component of a mixture in cooking | Synonyms: ingredient |
| fixity | (noun) the quality of being fixed in place as by some firm attachment | Synonyms: fastness, fixedness, fixture, secureness |
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| (noun) the quality of being incapable of mutation | Synonyms: immutability, immutableness |
| flexibility | (noun) the quality of being adaptable or variable | Synonyms: flexibleness |
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| (noun) the property of being flexible; easily bent or shaped | Synonyms: flexibleness |
| (noun) the trait of being easily persuaded | Synonyms: tractability, tractableness |
| flexibleness | (noun) the property of being flexible; easily bent or shaped | Synonyms: flexibility |
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| (noun) the quality of being adaptable or variable | Synonyms: flexibility |
| flexion | (noun) act of bending a joint; especially a joint between the bones of a limb so that the angle between them is decreased | Synonyms: flexure |
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| (noun) deviation from a straight or normal course | Synonyms: flection, inflection |
| (noun) the state of being flexed (as of a joint) | Synonyms: flection, flexure |
| flexitarianism | (noun) The practice of eating mainly vegetarian food, but making occasional exceptions for social, pragmatic, cultural, or nutritional reasons. | Synonyms: semi-vegetarianism |
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