/ Dictionary / Index M Mycerinus: Meaning and Definition of Find definitions for: Myc•e•ri•nus Pronunciation: (mis"u-rī'nus), [key] — n. king of ancient Egypt c2600–2570b.c. : builder of the third great pyramid at &syl;El&syl; Giza. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mycenaean -mycete Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language