| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
a person delivered into the hands of another as a security for the performance of some promise, etc. (2 Kings 14:14; 2 Chr. 25:24).