/ Dictionary / Index T thrombosis: Meaning and Definition of Find definitions for: throm•bo•sis Pronunciation: (throm-bō'sis), [key] — n. Pathol. intravascular coagulation of the blood in any part of the circulatory system, as in the heart, arteries, veins, or capillaries. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: thrombosis (Thesaurus) thrombopoietin thromboxane Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language