/ Dictionary / Index T -tomous: Meaning and Definition of Find definitions for: -tomous Pronunciation: [key] a combining form meaning “cut, divided,” used in the formation of compound words: dichotomous. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tomorrow tompion Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language