/ Dictionary / Index I intercalation: Meaning and Definition of Find definitions for: in•ter•ca•la•tion Pronunciation: (in-tûr"ku-lā'shun), [key] — n. the act of intercalating; insertion or interpolation, as in a series. something that is intercalated; interpolation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: intercalation (Thesaurus) intercalate intercardinal point Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language