/ Dictionary / Index E equatorial plate: Meaning and Definition of Find definitions for: e'quato'rial plate' Pronunciation: [key] — Cell Biol. Cell Biol. the central plane of the spindle in a dividing cell, to which chromosomes migrate during the metaphase of mitosis or meiosis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. equatorial plane equatorial tide 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