/ Dictionary / Index M Microscopium: Meaning and Definition of Find definitions for: Mi•cro•sco•pi•um Pronunciation: (mī"kru-skō'pē-um), [key] — gen. -pi•i the Microscope, a small southern constellation south of Capricorn. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: microscopium (Thesaurus) microscopic microscopy Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language