/ Dictionary / Index P platycnemia: Meaning and Definition of Find definitions for: plat•yc•ne•mi•a Pronunciation: (plat"ik-nē'mē-u, plat"i-nē'-), [key] — n. (in the shinbone) the state of being laterally flattened. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. platycephalic platyfish Related Content Daily Word Quiz: exemplary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language