heteroplasia: Meaning and Definition of

het•er•o•pla•sia

Pronunciation: (het"ur-u-plā'zhu, -zhē-u, -zē-u), [key]
— n. Pathol.
  1. the replacement of normal cells by abnormal cells, as in cancer.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.