| actinomorphic | (adjective) capable of division into symmetrical halves by any longitudinal plane passing through the axis | Synonyms: actinomorphous |
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| actinomorphous | (adjective) capable of division into symmetrical halves by any longitudinal plane passing through the axis | Synonyms: actinomorphic |
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| actinotherapy | (noun) (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance | Synonyms: irradiation, radiation, radiation therapy, radiotherapy |
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| activator | (noun) (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription | - |
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| activewear | (noun) attire worn for sport or for casual wear | Synonyms: athletic wear, sportswear |
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| actor | (noun) a theatrical performer | Synonyms: histrion, player, role player, thespian |
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| (noun) a person who acts and gets things done | Synonyms: doer, worker |
| actress | (noun) a female actor | - |
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| actuarial | (adjective) of or relating to the work of an actuary | - |
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| actuary | (noun) someone versed in the collection and interpretation of numerical data (especially someone who uses statistics to calculate insurance premiums) | Synonyms: statistician |
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| actuator | (noun) a mechanism that puts something into automatic action | - |
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| acupressure | (noun) treatment of symptoms by applying pressure with the fingers to specific pressure points on the body | Synonyms: G-Jo, shiatsu |
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| acupuncture | (noun) treatment of pain or disease by inserting the tips of needles at specific points on the skin | Synonyms: stylostixis |
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| 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 |
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| acylglycerol | (noun) an ester of glycerol and fatty acids that occurs naturally as fats and fatty oils | Synonyms: glyceride |
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| adapter | (noun) device that enables something to be used in a way different from that for which it was intended or makes different pieces of apparatus compatible | Synonyms: adaptor |
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| (noun) a musician who adapts a composition for particular voices or instruments or for another style of performance | Synonyms: arranger, transcriber |
| adaptor | (noun) device that enables something to be used in a way different from that for which it was intended or makes different pieces of apparatus compatible | Synonyms: adapter |
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| adder | (noun) small terrestrial viper common in northern Eurasia | Synonyms: common viper, Vipera berus |
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| (noun) a machine that adds numbers | - |
| (noun) a person who adds numbers | - |
| addlebrained | (adjective) stupid and confused | Synonyms: addlepated, muddleheaded, puddingheaded |
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| address | (noun) the ability to do or say what is appropriate for the occasion | Synonyms: savoir-faire |
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| (noun) the stance assumed by a golfer in preparation for hitting a golf ball | - |
| (noun) the act of delivering a formal spoken communication to an audience | Synonyms: speech |
| (noun) a sign in front of a house or business carrying the conventional form by which its location is described | - |
| (noun) written directions for finding some location; written on letters or packages that are to be delivered to that location | Synonyms: destination, name and address |
| (noun) the manner of speaking to another individual | - |
| (noun) (computer science) the code that identifies where a piece of information is stored | Synonyms: computer address, reference |
| (noun) the place where a person or organization can be found or communicated with | - |
| (verb) adjust and aim (a golf ball) at in preparation of hitting | - |
| (verb) speak to | Synonyms: turn to |
| (verb) speak to someone | Synonyms: accost, come up to |
| (verb) give a speech to | Synonyms: speak |
| (verb) put an address on (an envelope) | Synonyms: direct |
| (verb) act on verbally or in some form of artistic expression | Synonyms: cover, deal, handle, plow, treat |
| (verb) direct a question at someone | - |
| (verb) address or apply oneself to something, direct one's efforts towards something, such as a question | - |
| (verb) access or locate by address | - |
| (verb) greet, as with a prescribed form, title, or name | Synonyms: call |
| addressable | (adjective) capable of being addressed | - |
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| addressed | (adjective) (of mail) marked with a destination | - |
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| addressee | (noun) one to whom something is addressed | - |
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| adducer | (noun) a discussant who offers an example or a reason or a proof | - |
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| adductor | (noun) a muscle that draws a body part toward the median line | Synonyms: adductor muscle |
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| adenocarcinoma | (noun) malignant tumor originating in glandular epithelium | Synonyms: glandular cancer, glandular carcinoma |
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| adenocarcinomatous | (adjective) of or pertaining to adenocarcinoma | - |
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| 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 |
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| adenovirus | (noun) any of a group of viruses including those that in humans cause upper respiratory infections or infectious pinkeye | - |
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| adermin | (noun) a B vitamin that is essential for metabolism of amino acids and starch | Synonyms: pyridoxal, pyridoxamine, pyridoxine, vitamin B6 |
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| adhere | (verb) follow through or carry out a plan without deviation | - |
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| (verb) stick to firmly | Synonyms: bind, bond, hold fast, stick, stick to |
| (verb) come or be in close contact with; stick or hold together and resist separation | Synonyms: cleave, cling, cohere, stick |
| (verb) be compatible or in accordance with | - |
| (verb) be loyal to | Synonyms: stand by, stick, stick by |
| (verb) be a devoted follower or supporter | Synonyms: stick |
| adherence | (noun) faithful support for a cause or political party or religion | Synonyms: adhesion, attachment |
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| (noun) the property of sticking together (as of glue and wood) or the joining of surfaces of different composition | Synonyms: adhesion, adhesiveness, bond |
| adherent | (adjective) sticking fast | - |
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| (noun) someone who believes and helps to spread the doctrine of another | Synonyms: disciple |
| adhocracy | (noun) an organization with little or no structure | - |
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| adiaphoron | (noun) (Stoic philosophy) a matter having no moral merit or demerit. | - |
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| (noun) a religious ceremonial or ritual observance that is held to be an affair of the individual conscience because it is neither forbidden nor enjoined by the scriptures. | - |
| adjourn | (verb) close at the end of a session | Synonyms: break up, recess |
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| (verb) break from a meeting or gathering | Synonyms: retire, withdraw |
| adjournment | (noun) the termination of a meeting | Synonyms: dissolution |
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| (noun) the act of postponing to another time or place | - |
| adjudicator | (noun) a person who studies and settles conflicts and disputes | - |
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| adjudicatory | (adjective) concerned with adjudicating | Synonyms: adjudicative |
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| adjuration | (noun) a solemn and earnest appeal to someone to do something | - |
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| adjuratory | (adjective) earnestly or solemnly entreating | - |
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| (adjective) containing a solemn charge or command | - |
| adjure | (verb) command solemnly | - |
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| (verb) ask for or request earnestly | Synonyms: beseech, bid, conjure, entreat, press |
| adjuster | (noun) one who investigates insurance claims or claims for damages and recommends an effective settlement | Synonyms: adjustor, claim agent, claims adjuster, claims adjustor |
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| adjustor | (noun) one who investigates insurance claims or claims for damages and recommends an effective settlement | Synonyms: adjuster, claim agent, claims adjuster, claims adjustor |
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| admeasure | (verb) determine the quantity of someone's share | - |
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| administer | (verb) give or apply (medications) | Synonyms: dispense |
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| (verb) administer or bestow, as in small portions | Synonyms: allot, deal, deal out, dish out, dispense, distribute, dole out, lot, mete out, parcel out, shell out |
| (verb) perform (a church sacrament) ritually | - |
| (verb) work in an administrative capacity; supervise or be in charge of | Synonyms: administrate |
| (verb) direct the taking of | - |
| administrable | (adjective) capable of being administered or managed | - |
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| administrate | (verb) work in an administrative capacity; supervise or be in charge of | Synonyms: administer |
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| administration | (noun) a method of tending to or managing the affairs of some group of people (especially the group's business affairs) | Synonyms: disposal |
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| (noun) the act of administering medication | Synonyms: giving medication |
| (noun) the act of meting out justice according to the law | Synonyms: judicature |
| (noun) the act of governing; exercising authority | Synonyms: governance, governing, government, government activity |
| (noun) the persons (or committees or departments etc.) who make up a body for the purpose of administering something | Synonyms: brass, establishment, governance, governing body, organisation, organization |
| (noun) the tenure of a president | Synonyms: presidency, presidential term |
| administrative | (adjective) of or relating to or responsible for administration | - |
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| administratively | (adverb) by or for an administrator | - |
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| administrator | (noun) someone who administers a business | Synonyms: decision maker |
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| (noun) the party appointed by a probate court to distribute the estate of someone who dies without a will or without naming an executor | - |
| (noun) someone who manages a government agency or department | Synonyms: executive |
| administrivia | (noun) the tiresome but essential details that must be taken care of and tasks that must be performed in running an organization | - |
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| admirability | (noun) admirable excellence | Synonyms: admirableness, wonderfulness |
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| admirable | (adjective) inspiring admiration or approval | - |
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| (adjective) deserving of esteem and respect | Synonyms: estimable, good, honorable, respectable |
| admirableness | (noun) admirable excellence | Synonyms: admirability, wonderfulness |
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| admirably | (adverb) in an admirable manner | Synonyms: commendable, laudably, praiseworthily |
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| admiral | (noun) any of several brightly colored butterflies | - |
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| (noun) the supreme commander of a fleet; ranks above a vice admiral and below a fleet admiral | Synonyms: full admiral |
| admiralty | (noun) the office of admiral | - |
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| (noun) the department in charge of the navy (as in Great Britain) | - |
| admiration | (noun) a favorable judgment | Synonyms: appreciation |
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| (noun) a feeling of delighted approval and liking | Synonyms: esteem |
| (noun) the feeling aroused by something strange and surprising | Synonyms: wonder, wonderment |
| admire | (verb) feel admiration for | Synonyms: look up to |
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| (verb) look at with admiration | - |
| admired | (adjective) regarded with admiration | - |
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| admirer | (noun) someone who admires a young woman | Synonyms: adorer |
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| (noun) a person who backs a politician or a team etc. | Synonyms: booster, champion, friend, protagonist, supporter |
| (noun) a person who admires; someone who esteems or respects or approves | - |
| admiringly | (adverb) with admiration | - |
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| admixture | (noun) the act of mixing together | Synonyms: commixture, intermixture, mix, mixing, mixture |
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| (noun) an additional ingredient that is added by mixing with the base | Synonyms: intermixture |
| (noun) the state of impairing the quality or reducing the value of something | Synonyms: alloy |
| admonisher | (noun) someone who gives a warning so that a mistake can be avoided | Synonyms: monitor, reminder |
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| admonitory | (adjective) serving to warn | Synonyms: cautionary, exemplary, monitory, warning |
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| (adjective) expressing reproof or reproach especially as a corrective | Synonyms: admonishing, reproachful, reproving |
| adopter | (noun) a person who adopts a child of other parents as his or her own child | Synonyms: adoptive parent |
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| adorability | (noun) extreme attractiveness | Synonyms: adorableness |
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| adorable | (adjective) lovable especially in a childlike or naive way | Synonyms: endearing, lovely |
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| adorableness | (noun) extreme attractiveness | Synonyms: adorability |
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| adorably | (adverb) in an adorable manner | Synonyms: endearingly |
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| adoration | (noun) the act of admiring strongly | Synonyms: idolisation, idolization |
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| (noun) the worship given to God alone | Synonyms: latria |
| (noun) a feeling of profound love and admiration | Synonyms: worship |
| adore | (verb) love intensely | - |
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| adored | (adjective) regarded with deep or rapturous love (especially as if for a god) | Synonyms: idolised, idolized, worshipped |
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| adorer | (noun) someone who admires a young woman | Synonyms: admirer |
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| adoring | (adjective) extravagantly or foolishly loving and indulgent | Synonyms: doting, fond |
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| (adjective) showing adoration | Synonyms: worshipful |
| adoringly | (adverb) with adoration | - |
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| adorn | (verb) make more attractive by adding ornament, colour, etc. | Synonyms: beautify, decorate, embellish, grace, ornament |
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| (verb) furnish with power or authority; of kings or emperors | Synonyms: clothe, invest |
| (verb) be beautiful to look at | Synonyms: beautify, deck, decorate, embellish, grace |
| adorned | (adjective) provided with something intended to increase its beauty or distinction | Synonyms: decorated |
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| adornment | (noun) the action of decorating yourself with something colorful and interesting | - |
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| (noun) a decoration of color or interest that is added to relieve plainness | - |
| adoxography | (noun) fine writing in praise of trivial or base subjects | - |
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| adpressed | (adjective) pressed close to or lying flat against something | Synonyms: appressed |
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| adrenal | (adjective) of or pertaining to the adrenal glands or their secretions | - |
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| (adjective) near the kidneys | - |
| (noun) either of a pair of complex endocrine glands situated near the kidney | Synonyms: adrenal gland, suprarenal gland |
| adrenalectomy | (noun) surgical removal of one or both adrenal glands | Synonyms: suprarenalectomy |
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| adrenaline | (noun) a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action | Synonyms: Adrenalin, epinephrin, epinephrine |
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| adrenarche | (noun) the increase in activity of the adrenal glands just before puberty | - |
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| adrenergic | (adjective) relating to epinephrine (its release or action) | Synonyms: sympathomimetic |
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| (noun) drug that has the effects of epinephrine | Synonyms: adrenergic drug |
| adrenocortical | (adjective) of or derived from the cortex of the adrenal glands | - |
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| adrenocorticotrophic | (adjective) stimulating or acting on the adrenal cortex | Synonyms: adrenocorticotropic |
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| adrenocorticotrophin | (noun) a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex | Synonyms: ACTH, adrenocorticotrophic hormone, adrenocorticotropic hormone, adrenocorticotropin, corticotrophin, corticotropin |
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| adrenocorticotropic | (adjective) stimulating or acting on the adrenal cortex | Synonyms: adrenocorticotrophic |
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| adrenocorticotropin | (noun) a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex | Synonyms: ACTH, adrenocorticotrophic hormone, adrenocorticotrophin, adrenocorticotropic hormone, corticotrophin, corticotropin |
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| adrenosterone | (noun) a steroid having androgenic activity; obtained from the cortex of the adrenal gland | - |
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| adrift | (adjective) afloat on the surface of a body of water | - |
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| (adjective) aimlessly drifting | Synonyms: afloat, aimless, directionless, planless, rudderless, undirected |
| (adverb) off course, wandering aimlessly | - |
| (adverb) floating freely; not anchored | - |
| adroit | (adjective) quick or skillful or adept in action or thought | - |
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| adroitly | (adverb) with adroitness; in an adroit manner | - |
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| adroitness | (noun) skillful performance or ability without difficulty | Synonyms: adeptness, deftness, facility, quickness |
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| adscript | (adjective) written or printed immediately following another character and aligned with it | - |
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| (adjective) (used of persons) bound to a tract of land; hence their service is transferable from owner to owner | Synonyms: adscripted |
| adscripted | (adjective) (used of persons) bound to a tract of land; hence their service is transferable from owner to owner | Synonyms: adscript |
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| adsorb | (verb) accumulate (liquids or gases) on the surface | - |
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