/ Dictionary / Index T thrombo-: Meaning and Definition of Find definitions for: thrombo- Pronunciation: [key] a combining form with the meanings “blood clot,” “coagulation,” “thrombin,” used in the formation of compound words: thrombocyte. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thrombin thromboclasis Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language