/ Dictionary / Index P phlebitis: Meaning and Definition of Find definitions for: phle•bi•tis Pronunciation: (flu-bī'tis), [key] — n. Pathol. inflammation of a vein, often occurring in the legs and involving the formation of a thrombus, characterized by swelling, pain, and change of skin color. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: phlebitis (Thesaurus) Ph.L. phlebo- Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language