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Merriam-Webster's Collegiate Dictionary ex·act
ETYMOLOGY Middle English, to require as payment, from Latin exactus, past participle of exigere to drive out, demand, measure, from ex- + agere to drive — more at agent DATE 1564 1. to call for forcibly or urgently and obtain from them has been exacted the ultimate sacrifice — D. D. Eisenhower 2. to call for as necessary or desirable Synonyms: see demand
adjective ETYMOLOGY Latin exactus DATE 1533 1. exhibiting or marked by strict, particular, and complete accordance with fact or a standard 2. marked by thorough consideration or minute measurement of small factual details Synonyms: see correct English Etymology exact exact (adj.) "precise, rigorous, accurate," 1533, from L. exactus,pp. of exigere, lit. "to drive or force out," also "demand, finish, measure," from ex- "out" + agere "drive, lead, act" (see act). The verb (1380, implied in exaction) is older in Eng. and represents the literal sense of the Latin. Exacting "too demanding" is from 1583. Elliptical use of exactly for "quite right" not recorded before 1869. Exacta as a type of horse-racing bet is first attested 1964, said to have originated in N.Y. Oxford Advanced Learner's Dictionary-牛津双解-OALD7 ☞ exact exact / i^5zAkt / adjective1. correct in every detail 精确的；准确的 SYN precise :
She gave an exact description of the attacker. 她对袭击者的特征作了精确的描述。 an exact copy / replica of the painting 那幅画的精确复制品 We need to know the exact time the incident occurred. 我们需要了解事情发生的确切时间。 What were his exact words? 他的原话是什么？ She's in her mid-thirties—thirty-six to be exact. 她三十五岁左右——确切地说是三十六岁。 The colours were an exact match. 颜色极为协调。 He started to phone me at the exact moment I started to phone him (= at the same time). 他开始给我打电话时,我也正好开始给他打电话。 Her second husband was the exact opposite of her first (= completely different). 她的第二任丈夫与第一任截然不同。 ⇨ note at true 2. (of people 人) very accurate and careful about details 严谨的；严格的；一丝不苟的 SYN meticulous , precise
3. (of a science 科学) using accurate measurements and following set rules 精密的；严密的 SYN precise :
Assessing insurance risk can never be an exact science. 估定承保的风险永远不会成为一门精确的科学。 • exact·ness noun [U] verb[VN] ~ sth (from sb) (formal) 1. to demand and get sth from sb 要求；索取: She was determined to exact a promise from him. 她决意要他作出许诺。 2. to make sth bad happen to sb 迫使；强迫；强求: Stress can exact a high price from workers (= can affect them badly). 压力可能迫使工人付出昂贵的代价。 He exacted (= took) a terrible revenge for their treatment of him. 他因受他们的虐待而痛加报复。 • exac·tion / i^5zAkFn / noun [C, U] (formal) Merriam-Webster's Collegiate Thesaurus-11th Edition adj. Function: verb 1 Synonyms: EXTORT 1, gouge, pinch, screw, shake down, squeeze, wrench, wrest, wring 2 Synonyms: LEVY , assess, impose, put (on or upon) 3 Synonyms: DEMAND 1, call, challenge, claim, postulate, require, requisition, solicit Related Words: coerce, compel, constrain, force, oblige; extort, extract, squeeze, wrest, wring adj. Function: adjective 1 Synonyms: CORRECT 2, accurate, nice, precise, proper, right, rigorous Idioms: on the money 2 Synonyms: EVEN 5, square Antonyms: imprecise, inexact 3 Synonyms: SAME 1, identical, selfsame, very 4 Synonyms: CAREFUL 2, conscientious, conscionable, fussy, heedful, meticulous, painstaking, punctilious, punctual, scrupulous 5 Synonyms: PRECISE 4, veryWebster's Third New International Dictionary, Unabridged Search result show the entry is found in: exact differential , or exact science ex·act I. \igˈzakt, eg-\ verb (-ed/-ing/-s) Etymology: Middle English exacten, from Latin exactus, past participle of exigere to drive out, demand, exact (payment), weigh, measure, from ex- ex- (I) + -igere (from agere to drive, lead, act, do) — more at agent transitive verb 1. : to demand and force or compel (payment, surrender, concession, performance, compliance) : wring , extort , wrest < from them has been exacted the ultimate sacrifice — D.D.Eisenhower > < qualms which exacted rites of expiation — John Dewey > 2. : to require despite difficulty or reluctance : call for as necessary, appropriate, or desirable < a task so delicate exacts the scholar and philosopher — B.N.Cardozo > 3. archaic : to draw (as a meaning) out : extract intransitive verb obsolete : to practice exaction Synonyms: see demand II. adjective (often -er/-est) Etymology: Latin exactus, from past participle of exigere 1. : exhibiting or characterized by strict, particular, and complete accordance with fact, truth, or an established standard or original :devoid of any addition, subtraction, or other variation from fact or a standard < the exact time > < not only is exact description difficult — Aldous Huxley > < an exact account of the quarrel > < extremely exact in conduct > 2. : characterized or marked by thorough consideration or minute measurement of small factual details usually leading to incontestably true conclusions : not incomplete or approximate < a power of intuition greater than that of an exact investigator — Havelock Ellis > < the exact measurements of physical science > Synonyms: see correct |
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