PLEOMORPHISM
pleomorphism
(noun) (biology) the appearance of two or more distinctly different forms in the life cycle of some organisms
polymorphism, pleomorphism
(noun) (chemistry) the existence of different kinds of crystal of the same chemical compound
Source: WordNet® 3.1
Etymology
Noun
pleomorphism (countable and uncountable, plural pleomorphisms)
(biology) the occurrence of multiple structural forms during the life cycle of an organism
(chemistry) synonym of polymorphism
Source: Wiktionary
Ple`o*mor"phism, n. Etym: [Gr.
1. (Crystallog.)
Definition: The property of crystallizing under two or more distinct
fundamental forms, including dimorphism and trimorphism.
2. (Biol.)
Definition: The theory that the various genera of bacteria are phases or
variations of growth of a number of Protean species, each of which
may exhibit, according to undetermined conditions, all or some of the
forms characteristic of the different genera and species.
Source: Webster’s Unabridged Dictionary 1913 Edition