/ Dictionary / Index B biodiversity: Meaning and Definition of Find definitions for: bi•o•di•ver•si•ty Pronunciation: (bī"ō-di-vûr'si-tē, -dī-), [key] diversity of plant and animal species in an environment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: biodiversity (Thesaurus) biodeterioration biodrama Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language