Meaning of endomorphism

en•do•mor•phism

Pronunciation: (en"dō-môr'fiz-um, -du), [key]
— n.
  1. a change brought about within the mass of an intrusive igneous rock.
  2. a homomorphism of a set into itself.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.