Noun, pl. epicrania
1. The medical term for the collection of structures covering the cranium. It consists of the muscles, aponeurosis, and skin. (wikipedia.org)
3. The muscle and aponeurosis and skin covering the cranium. (wordnetweb.princeton.edu)
Word origin: From Ancient Greek ἐπί (epi, “on top of”) and from Medieval Latin crānium (“skull”), from Ancient Greek κρανίον (kranion, “skull”).