from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Biology An organism characterized by polymorphism.
- n. Chemistry A specific crystalline form of a compound that can crystallize in different forms.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any organism that shows polymorphism
- n. Any substance or mineral that forms different types of crystal
from the GNU version of the Collaborative International Dictionary of English
- n. A substance capable of crystallizing in several distinct forms; also, any one of these forms. Cf. allomorph.
from The Century Dictionary and Cyclopedia
- n. In chem., a substance which crystallizes in two or more forms distinct from each other. See dimorphism and trimorphism.
- n. In biology, an organism exhibiting or characterized by polymorphism; an individual member of a species or other group which differs from other members of the same group to an unusual degree.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an organism that can assume more than one adult form as in the castes of ants or termites
poly- + -morph (Wiktionary)