| benzoyl group | |
noun | |
| the univalent radical derived from benzoic acid |
| 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. |
| benzoyl radical | |
noun | |
| the univalent radical derived from benzoic acid [syn: benzoyl group] |