/ Dictionary / Index P platycephalic: Meaning and Definition of Find definitions for: plat•y•ce•phal•ic Pronunciation: (plat"ē-su-fal'ik), [key] — adj. Cephalom. having a head whose cranial vault is broad or flat. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. platy platycnemia Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language