[ ahy-den-ti-kuhl, 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

SYNONYMS FOR identical

3 congruous, congruent, equal, matching.

OTHER WORDS FROM identical Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for nonidentical

/ (aɪˈdɛntɪkəl) /


Also called: numerically identical being one and the same individualCicero 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 twoCompare fraternal (def. 3)

Derived forms of identical

identically, adverbidenticalness, noun

Word Origin for identical

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

Medicine definitions for nonidentical (1 of 2)

[ nŏn′ī-dĕntĭ-kəl ]


Not being the same; different.
Fraternal, as of twins.

Medicine definitions for nonidentical (2 of 2)

[ ī-dĕntĭ-kəl ]


Exactly equal and alike.
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.