| the offspring of a zebra and a donkey. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
epicardium ep·i·car·di·um (ěp'ĭ-kär'dē-əm)
n. pl. ep·i·car·di·a (-dē-ə)
The inner layer of the pericardium that is in contact with the surface of the heart. Also called visceral layer.