1. [C-]; Greek Mythology a fire-breathing monster, usually represented as having a lion's head, a goat's body,
and a serpent's tail
2. any similar fabulous monster
4. Biology an organism having two or more genetically distinct types of cells due to mutation, grafting, etc.
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'chimera'
ME & OFr < L chimaera
< Gr chimaira
, fabulous monster, orig., she-goat that has passed one winter < cheima
, winter: see hibernate