| nail-biting | |
| —n | |
| 1. | the act or habit of biting one's fingernails |
| 2. | a. anxiety or tension |
| b. (as modifier): nail-biting suspense | |
| 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. |