/ Dictionary / Index I interphase: Meaning and Definition of Find definitions for: in•ter•phase Pronunciation: (in'tur-fāz"), [key] — n. Cell Biol. the period of the cell cycle during which the nucleus is not undergoing division, typically occurring between mitotic or meiotic divisions. Also calledCf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. interpersonal therapy interphone Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language