/ Dictionary / Index B biology: Meaning and Definition of Find definitions for: bi•ol•o•gy Pronunciation: (bī-ol'u-jē), [key] — n. the science of life or living matter in all its forms and phenomena, esp. with reference to origin, growth, reproduction, structure, and behavior. the living organisms of a region: the biology of Pennsylvania. the biological phenomena characteristic of an organism or a group of organisms: the biology of a worm. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: biology (Thesaurus) biologist bioluminescence Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language