/ Dictionary / Index B biome: Meaning and Definition of Find definitions for: bi•ome Pronunciation: (bī'ōm), [key] — n. Ecol. a complex biotic community characterized by distinctive plant and animal species and maintained under the climatic conditions of the region, esp. such a community that has developed to climax. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: biome (Thesaurus) biomathematics biomechanics Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language