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[ahy-den-ti-kuh l, ih-den-] /aɪˈdɛn tɪ kəl, ɪˈdɛn-/
similar or alike in every way:
The two cars are identical except for their license plates.
being the very same; selfsame:
This is the identical room we stayed in last year.
agreeing exactly:
identical opinions.
Origin of identical
1610-20; < Medieval Latin identic(us) identic + -al1
Related forms
identically, adverb
identicalness, noun
nonidentical, adjective
pseudoidentical, adjective
quasi-identical, adjective
quasi-identically, adverb
unidentical, adjective
unidentically, adverb
3. congruous, congruent, equal, matching. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for identically
Contemporary Examples
Historical Examples
  • identically the same thing is done in the construction of the flying machine.

    Flying Machines W.J. Jackman and Thos. H. Russell
  • And then, to complete the record, he got identically the same suggestion from Bob Standish.

    Rope Holworthy Hall
  • The portraits were identically alike, and uniformly impassive.

    Blazed Trail Stories Stewart Edward White
  • He has a talent for appearing at identically the right moment.

    The Long Roll Mary Johnston
  • Intrinsically the constitution of the mind is identically the same.

    The Land of Thor J. Ross Browne
  • Are they not critically, accurately, and identically the same?

  • But in the Pass of Brandir all these particulars are identically to be traced.

  • It is the same bird we get in Britain, and behaves in identically the same way.

    Egyptian Birds Charles Whymper
  • She was so identically the same Sophia that he had left so lately, that he felt reassured.

British Dictionary definitions for identically


Also called numerically identical. being one and the same individual: Cicero and Tully are identical
Also called quantitatively identical. exactly alike, equal, or agreeing
designating either or both of a pair of twins of the same sex who developed from a single fertilized ovum that split into two Compare fraternal (sense 3)
Derived Forms
identically, adverb
identicalness, noun
Word Origin
C17: from Medieval Latin identicus, from Latin idem the same
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for identically



1610s, as a term in logic, from Medieval Latin identicus "the same," from Late Latin identitas "identity, sameness," ultimately from comb. form of Latin idem "the same" (from id "it, that one;" see id) + demonstrative suffix -dem. General sense of "being the same or very similar" is from 1630s. Replaced Middle English idemptical (late 15c.), from Medieval Latin idemptitas "identity," from Latin idem. Related: Identically.

Online Etymology Dictionary, © 2010 Douglas Harper
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identically in Medicine

identical i·den·ti·cal (ī-děn'tĭ-kəl)

  1. Exactly equal and alike.

  2. Of or relating to a twin or twins developed from the same fertilized ovum and having the same genetic makeup and closely similar appearance; monozygotic.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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