/ Dictionary / Index E epiphysis: Meaning and Definition of Find definitions for: e•piph•y•sis Pronunciation: (i-pif'u-sis), [key] — pl. -ses a part or process of a bone separated from the main body of the bone by a layer of cartilage and subsequently uniting with the bone through further ossification. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: epiphysis (Thesaurus) epiphyllum epiphyte Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language