Dictionary
ep•i•my•o•car•di•um
Pronunciation: (ep"u-mī"u-kär'dē-um), [key]—
n.,
—pl. -di•aPronunciation: (-dē-u). [key]
Embryol.
the outer, mesodermal layer of the embryonic heart, which develops into the epicardium and the myocardium.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.