/ Dictionary / Index M microcephalic: Meaning and Definition of Find definitions for: mi•cro•ce•phal•ic Pronunciation: (mī"krō-su-fal'ik), [key] — adj. Cephalom., Pathol. having a head with a small braincase. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: microcephalic (Thesaurus) microcassette microchemistry Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language