| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
Bernard Ber·nard (běr-när'), Claude. 1813-1878.
French physiologist noted for his study of the digestive and nervous systems.
| Bernard (běr-när') Pronunciation Key
French physiologist noted for his study of the chemical reactions involved in the digestive system and of the connection between the liver and the nervous system. His work laid the foundation for experimental medicine. |