from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Being the same.
  • adjective Exactly equal and alike.
  • adjective Biology 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.

from The Century Dictionary.

  • Being the same; absolutely indistinguishable; distinguishable only as points of view of that which is one in its own being: also used loosely to express the fact that two or more things compared are the same in the particulars considered, or differ in no essential point.
  • Expressing identity.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective The same; the selfsame; the very same; not different.
  • adjective Uttering sameness or the same truth; expressing in the predicate what is given, or obviously implied, in the subject; tautological.
  • adjective (Alg.) an equation which is true for all values of the algebraic symbols which enter into it.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective not comparable Bearing full likeness by having precisely the same set of characteristics; indistinguishable.
  • adjective not comparable Not different or other; not another or others; not different as regards self; selfsame; numerically identical.
  • adjective not comparable Having some particular qualities or characteristics in common, but not all of them.
  • adjective not comparable, biology Of twins, sharing the same genetic code.
  • adjective not comparable, mathematics Exactly equivalent.
  • adjective comparable, rare Approximating or approaching exact equivalence.
  • noun usually pluralized Something which has exactly the same properties as something else.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective exactly alike; incapable of being perceived as different
  • adjective (of twins) derived from a single egg or ovum
  • adjective having properties with uniform values along all axes
  • adjective being the exact same one; not any other:
  • adjective coinciding exactly when superimposed


from The American Heritage® Dictionary of the English Language, 4th Edition

[From Medieval Latin identicus, from Late Latin identitās, identity; see identity.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From identic +‎ -al.



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