/ Dictionary / Index P phlebothrombosis: Meaning and Definition of Find definitions for: phleb•o•throm•bo•sis Pronunciation: (fleb"ō-throm-bō'sis), [key] — n. Pathol. the presence of a thrombus in a vein. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: phlebothrombosis (Thesaurus) phlebosclerosis phlebotome Related Content Daily Word Quiz: modify Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language