/ Dictionary / Index I intercalate: Meaning and Definition of Find definitions for: in•ter•ca•late Pronunciation: (in-tûr'ku-lāt"), [key] — -lat•ed, -lat•ing. to interpolate; interpose. to insert (an extra day, month, etc.) in the calendar. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: intercalate (Thesaurus) intercalary meristem intercalation Related Content Daily Word Quiz: draconian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language