| addax | (noun) large antelope with lightly spiraled horns of desert regions of northern Africa | Synonyms: Addax nasomaculatus |
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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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| anthrax | (noun) a highly infectious animal disease (especially cattle and sheep); it can be transmitted to people | Synonyms: splenic fever |
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| (noun) a disease of humans that is not communicable; caused by infection with Bacillus anthracis followed by septicemia | - |
| anticlimax | (noun) a change from a serious subject to a disappointing one | Synonyms: bathos |
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| (noun) a disappointing decline after a previous rise | - |
| apraxia | (noun) inability to make purposeful movements | - |
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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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| ataxy | (noun) inability to coordinate voluntary muscle movements; unsteady movements and staggering gait | Synonyms: ataxia, dyssynergia, motor ataxia |
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| ax | (noun) an edge tool with a heavy bladed head mounted across a handle | Synonyms: axe |
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| axe | (noun) an edge tool with a heavy bladed head mounted across a handle | Synonyms: ax |
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| axerophthol | (noun) any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes | Synonyms: A, antiophthalmic factor, vitamin A |
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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 | - |
| axle | (noun) a shaft on which a wheel rotates | - |
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| axletree | (noun) a dead axle on a carriage or wagon that has terminal spindles on which the wheels revolve | - |
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| axolemma | (noun) outer membrane covering an axon | - |
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| axolotl | (noun) larval salamander of mountain lakes of Mexico that usually lives without metamorphosing | Synonyms: Ambystoma mexicanum, mud puppy |
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| axon | (noun) long nerve fiber that conducts away from the cell body of the neuron | Synonyms: axone |
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| axone | (noun) long nerve fiber that conducts away from the cell body of the neuron | Synonyms: axon |
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| axseed | (noun) European herb resembling vetch; naturalized in the eastern United States; having umbels of pink-and-white flowers and sharp-angled pods | Synonyms: Coronilla varia, crown vetch |
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| beeswax | (noun) a yellow to brown wax secreted by honeybees to build honeycombs | - |
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| blaxploitation | (noun) the exploitation of black people (especially with regard to stereotyped roles in movies) | - |
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| borax | (noun) an ore of boron consisting of hydrated sodium borate; used as a flux or cleansing agent | - |
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| breakax | (noun) West Indian timber tree having very hard wood | Synonyms: break-axe, breakaxe, Sloanea jamaicensis |
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| breakaxe | (noun) West Indian timber tree having very hard wood | Synonyms: break-axe, breakax, Sloanea jamaicensis |
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| broadax | (noun) a large ax with a broad cutting blade | Synonyms: broadaxe |
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| broadaxe | (noun) a large ax with a broad cutting blade | Synonyms: broadax |
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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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| ceftriaxone | (noun) a parenteral cephalosporin (trade name Rocephin) used for severe infection of the lungs or throat or ears or urinary tract | Synonyms: Rocephin |
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| chemotaxis | (noun) movement by a cell or organism in reaction to a chemical stimulus | - |
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| claxon | (noun) a kind of loud horn formerly used on motor vehicles | Synonyms: klaxon |
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| climax | (noun) the moment of most intense pleasure in sexual intercourse | Synonyms: coming, orgasm, sexual climax |
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| (noun) the decisive moment in a novel or play | Synonyms: culmination |
| (noun) arrangement of clauses in ascending order of forcefulness | - |
| (noun) the highest point of anything conceived of as growing or developing or unfolding | Synonyms: flood tide |
| (noun) the most severe stage of a disease | - |
| coax | (noun) a transmission line for high-frequency signals | Synonyms: coax cable, coaxial cable |
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| coaxer | (noun) someone who tries to persuade by blandishment and coaxing | Synonyms: wheedler |
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| coaxing | (noun) flattery designed to gain favor | Synonyms: blarney, soft soap, sweet talk |
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| earwax | (noun) a soft yellow wax secreted by glands in the ear canal | Synonyms: cerumen |
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| epistaxis | (noun) bleeding from the nose | Synonyms: nosebleed |
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| epitaxy | (noun) growing a crystal layer of one mineral on the crystal base of another mineral in such a manner that its crystalline orientation is the same as that of the substrate | - |
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| fax | (noun) duplicator that transmits the copy by wire or radio | Synonyms: facsimile, facsimile machine |
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| flax | (noun) plant of the genus Linum that is cultivated for its seeds and for the fibers of its stem | - |
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| (noun) fiber of the flax plant that is made into thread and woven into linen fabric | - |
| flaxseed | (noun) the seed of flax used as a source of oil | Synonyms: linseed |
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| fraxinella | (noun) Eurasian perennial herb with white flowers that emit flammable vapor in hot weather | Synonyms: burning bush, Dictamnus alba, dittany, gas plant |
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| galax | (noun) tufted evergreen perennial herb having spikes of tiny white flowers and glossy green round to heart-shaped leaves that become coppery to maroon or purplish in fall | Synonyms: beetleweed, coltsfoot, Galax urceolata, galaxy, wandflower |
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| galaxy | (noun) (astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust | Synonyms: extragalactic nebula |
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| (noun) a splendid assemblage (especially of famous people) | - |
| (noun) tufted evergreen perennial herb having spikes of tiny white flowers and glossy green round to heart-shaped leaves that become coppery to maroon or purplish in fall | Synonyms: beetleweed, coltsfoot, galax, Galax urceolata, wandflower |
| haemothorax | (noun) accumulation of blood in the pleural cavity (the space between the lungs and the walls of the chest) | Synonyms: hemothorax |
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| hemothorax | (noun) accumulation of blood in the pleural cavity (the space between the lungs and the walls of the chest) | Synonyms: haemothorax |
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| heterotaxy | (noun) any abnormal position of the organs of the body | Synonyms: transposition |
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| hoax | (noun) something intended to deceive; deliberate trickery intended to gain an advantage | Synonyms: dupery, fraud, fraudulence, humbug, put-on |
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| hoaxer | (noun) someone who plays practical jokes on others | Synonyms: cut-up, practical joker, prankster, tricker, trickster |
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| hydrothorax | (noun) accumulation of fluid in the pleural cavity (the space between the lungs and the walls of the chest) often resulting from disease of the heart or kidneys | - |
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| hyrax | (noun) any of several small ungulate mammals of Africa and Asia with rodent-like incisors and feet with hooflike toes | Synonyms: coney, cony, das, dassie |
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| klaxon | (noun) a kind of loud horn formerly used on motor vehicles | Synonyms: claxon |
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| laxation | (noun) the act of making something less tight | Synonyms: loosening |
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| (noun) the elimination of fecal waste through the anus | Synonyms: defecation, shitting |
| laxative | (noun) a mild cathartic | - |
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| laxity | (noun) the quality of being lax and neglectful | Synonyms: laxness, remissness, slackness |
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| (noun) the condition of being physiologically lax | Synonyms: laxness |
| laxness | (noun) the quality of being lax and neglectful | Synonyms: laxity, remissness, slackness |
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| (noun) the condition of being physiologically lax | Synonyms: laxity |
| max | (noun) street names for gamma hydroxybutyrate | Synonyms: easy lay, Georgia home boy, goop, grievous bodily harm, liquid ecstasy, scoop, soap |
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| maxi | (noun) a long skirt ending below the calf | - |
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| maxilla | (noun) the jaw in vertebrates that is fused to the cranium | Synonyms: maxillary, upper jaw, upper jawbone |
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| maxillaria | (noun) any of numerous orchids of the genus Maxillaria often cultivated for their large brilliantly colored solitary flowers | - |
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| maxillary | (noun) the jaw in vertebrates that is fused to the cranium | Synonyms: maxilla, upper jaw, upper jawbone |
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| maxilliped | (noun) One of a set of three paired appendages on the thorax of a decapod crustacean, located just posterior to the maxillae and used in feeding. | Synonyms: gnathopod |
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| maxim | (noun) a saying that is widely accepted on its own merits | Synonyms: axiom |
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| maximation | (noun) the act of raising to the highest possible point or condition or position | Synonyms: maximisation, maximization |
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| maximisation | (noun) the act of raising to the highest possible point or condition or position | Synonyms: maximation, maximization |
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| maximization | (noun) the act of raising to the highest possible point or condition or position | Synonyms: maximation, maximisation |
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| (noun) the mathematical process of finding the maximum value of a function | - |
| maximum | (noun) the greatest possible degree | Synonyms: level best, utmost, uttermost |
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| (noun) the point on a curve where the tangent changes from positive on the left to negative on the right | - |
| (noun) the largest possible quantity | Synonyms: upper limit |
| maxwell | (noun) a cgs unit of magnetic flux equal to the flux perpendicular to an area of 1 square centimeter in a magnetic field of 1 gauss | Synonyms: Mx |
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| morphallaxis | (noun) regeneration on a reduced scale of a body part; observed especially in invertebrates such as certain lobsters | - |
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| opopanax | (noun) an odorous gum resin formerly used in medicines | - |
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| parallax | (noun) the apparent displacement of an object as seen from two different points that are not on a line with the object | - |
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| parapraxis | (noun) a minor inadvertent mistake usually observed in speech or writing or in small accidents or memory lapses etc. | Synonyms: miscue, slip-up, slip |
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| pax | (noun) (Roman Catholic Church) a greeting signifying Christian love for those assisting at the Eucharist | Synonyms: kiss of peace |
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| pickax | (noun) a heavy iron tool with a wooden handle and a curved head that is pointed on both ends | Synonyms: pick, pickaxe |
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| pickaxe | (noun) a heavy iron tool with a wooden handle and a curved head that is pointed on both ends | Synonyms: pick, pickax |
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| pneumothorax | (noun) abnormal presence of air in the pleural cavity resulting in the collapse of the lung; may be spontaneous (due to injury to the chest) or induced (as a treatment for tuberculosis) | - |
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| poleax | (noun) a battle ax used in the Middle Ages; a long handled ax and a pick | Synonyms: poleaxe |
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| (noun) an ax used to slaughter cattle; has a hammer opposite the blade | Synonyms: poleaxe |
| poleaxe | (noun) a battle ax used in the Middle Ages; a long handled ax and a pick | Synonyms: poleax |
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| (noun) an ax used to slaughter cattle; has a hammer opposite the blade | Synonyms: poleax |
| praxis | (noun) translating an idea into action | Synonyms: practice |
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| prophylaxis | (noun) the prevention of disease | - |
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| prothorax | (noun) the anterior part of an insect's thorax; bears the first pair of legs | - |
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| relaxant | (noun) a drug that relaxes and relieves tension | - |
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| relaxation | (noun) freedom from activity (work or strain or responsibility) | Synonyms: ease, repose, rest |
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| (noun) the act of making less strict | Synonyms: liberalisation, liberalization |
| (noun) a method of solving simultaneous equations by guessing a solution and then reducing the errors that result by successive approximations until all the errors are less than some specified amount | Synonyms: relaxation method |
| (noun) an occurrence of control or strength weakening | Synonyms: loosening, slackening |
| (noun) a feeling of refreshing tranquility and an absence of tension or worry | Synonyms: easiness |
| (noun) (physics) the exponential return of a system to equilibrium after a disturbance | Synonyms: relaxation behavior |
| (noun) (physiology) the gradual lengthening of inactive muscle or muscle fibers | - |
| relaxedness | (noun) The quality of being eased or loosened, or of having an easy-going mood or temperament. | - |
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| relaxer | (noun) any agent that produces relaxation | - |
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| relaxin | (noun) hormone secreted by the corpus luteum during the last days of pregnancy; relaxes the pelvic ligaments and prepares the uterus for labor | - |
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| sax | (noun) a single-reed woodwind with a conical bore | Synonyms: saxophone |
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| saxhorn | (noun) any of a family of brass wind instruments that resemble a bugle with valves | - |
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| saxifrage | (noun) any of various plants of the genus Saxifraga | Synonyms: breakstone, rockfoil |
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| saxist | (noun) a musician who plays the saxophone | Synonyms: saxophonist |
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| saxitoxin | (noun) a powerful neurotoxin produced by certain dinoflagellates found in red tides; it can accumulate in mollusks that feed on the dinoflagellates and cause food poisoning to humans | - |
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| saxophone | (noun) a single-reed woodwind with a conical bore | Synonyms: sax |
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| saxophonist | (noun) a musician who plays the saxophone | Synonyms: saxist |
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| scramasax | (noun) A single-edged knife or sword used by the Anglo-Saxons for fighting and hunting. | Synonyms: scramaseax, scramsax |
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| scramaseax | (noun) A single-edged knife or sword used by the Anglo-Saxons for fighting and hunting. | Synonyms: scramasax, scramsax |
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| scramsax | (noun) A single-edged knife or sword used by the Anglo-Saxons for fighting and hunting. | Synonyms: scramasax, scramaseax |
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