/ Dictionary / Index E epicranium: Meaning and Definition of Find definitions for: ep•i•cra•ni•um Pronunciation: (ep"i-krā'nē-um), [key] — pl. -ni•a the layer of scalp formed by muscle and flattened tendon. the top of the head in insects, usually including the frons, genae, and vertex. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: epicranium (Thesaurus) epicotyl epicrisis Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language