/ Dictionary / Index J joint ill: Meaning and Definition of Find definitions for: joint' ill" Pronunciation: [key] — Vet. Pathol. Vet. Pathol. an infectious disease of newborn foals characterized by swollen inflamed joints and high fever, usually fatal. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. joint family joint issue Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language