/ Dictionary / Index B bionomy: Meaning and Definition of Find definitions for: bi•on•o•my Pronunciation: (bī-on'u-mē), [key] — n. physiology. ecology. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bionomics bioorganic 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