exactness

exact

[ig-zakt]
adjective
1.
strictly accurate or correct: an exact likeness; an exact description.
2.
precise, as opposed to approximate: the exact sum; the exact date.
3.
admitting of no deviation, as laws or discipline; strict or rigorous.
4.
capable of the greatest precision: exact instruments.
5.
characterized by or using strict accuracy: an exact thinker.
6.
Mathematics. (of a differential equation) noting that the collection of all terms, equated to zero, is an exact differential.
verb (used with object)
7.
to call for, demand, or require: to exact respect from one's children.
8.
to force or compel the payment, yielding, or performance of: to exact money; to exact tribute from a conquered people.

Origin:
1400–50; late Middle English exacten (v.) < Latin exāctus (past participle of exigere drive out, thrust out), equivalent to ex- ex-1 + ag(ere) to drive + -tus past participle suffix

exactable, adjective
exacter, exactor, noun
exactness, noun
nonexactable, adjective
preexact, adjective, verb (used with object)
quasi-exact, adjective
quasi-exactly, adverb
unexacted, adjective


3. rigid, severe, unbending. 5. methodical, careful, punctilious, demanding, scrupulous. 8. wring. See extract.


1, 2. imprecise.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
exact (ɪɡˈzækt)
 
adj
1.  correct in every detail; strictly accurate: an exact copy
2.  precise, as opposed to approximate; neither more nor less: the exact sum
3.  (prenominal) specific; particular: this exact spot
4.  operating with very great precision: exact instruments
5.  allowing no deviation from a standard; rigorous; strict: an exact mind
6.  based mainly on measurement and the formulation of laws, as opposed to description and classification: physics is an exact science
 
vb
7.  to force or compel (payment or performance); extort: to exact tribute
8.  to demand as a right; insist upon: to exact respect from one's employees
9.  to call for or require: this work exacts careful effort
 
[C16: from Latin exactus driven out, from exigere to drive forth, from agere to drive]
 
ex'actable
 
adj
 
ex'actness
 
n
 
ex'actor
 
n
 
ex'acter
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

exact
"precise, rigorous, accurate," 1530s, 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 (late 14c., implied in exaction) is older in English and represents the literal
sense of the Latin. Related: Exacted.
Online Etymology Dictionary, © 2010 Douglas Harper
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