n.
Pronunciation: ˌ ī -s ə - ' mo ̇ r- ˌ fi-z ə m
Function: noun
Etymology: International Scientific Vocabulary
Date: circa 1828
1 : the quality or state of being isomorphic: as a : similarity in organisms of different ancestry resulting from convergence b : similarity of crystalline form between chemical compounds
2 : a one-to-one correspondence between two mathematical sets especially : a homomorphism that is one-to-one ― compare ENDOMORPHISM