/ Dictionary / Index M madrepore: Meaning and Definition of Find definitions for: mad•re•pore Pronunciation: (mad'ru-pôr", -pōr"), [key] — n. any true or stony coral of the order Madreporaria, forming reefs or islands in tropical seas. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: madrepore (Thesaurus) Madre de Dios madreporite Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language