AskDefine | Define identical

Dictionary Definition

identical adj
1 exactly alike; incapable of being perceived as different; "rows of identical houses"; "cars identical except for their license plates"; "they wore indistinguishable hats" [syn: indistinguishable]
2 being the exact same one; not any other:; "this is the identical room we stayed in before"; "the themes of his stories are one and the same"; "saw the selfsame quotation in two newspapers"; "on this very spot"; "the very thing he said yesterday"; "the very man I want to see" [syn: one and the same(p), selfsame(a), very(a)]
3 (of twins) derived from a single egg or ovum; "identical twins are monovular" [syn: monovular] [ant: fraternal]
4 having properties with uniform values along all axes
5 coinciding exactly when superimposed; "identical triangles" [syn: superposable]

User Contributed Dictionary



  1. Exactly equivalent to; bearing full likeness.
  2. Of twins: that share the same genetic code.
  3. Exactly equivalent



Derived terms

Related terms


exactly equivalent to
of twins: that share the same genetic code
  • Dutch: identiek, identieke
  • Finnish: identtinen
  • Hungarian: egypetéjű
  • Italian: monovulari
  • Japanese: 一卵性の
mathematics: exactly equivalent
  • Japanese: 同一の


Extensive Definition

In quantum mechanics, identity of particles of the same kind (say, electrons) mathematically results in profound consequences for their collective behavior - quantum statistics of bosons and fermions.

Synonyms, Antonyms and Related Words

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