| active service or esp (US) active duty | |
| —n | |
| military duty in an operational area | |
| active duty or esp (US) active duty | |
| —n | |
| 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 scrap or morsel of food left at a meal. |
| active service or esp (US) active duty | |
| —n | |
| military duty in an operational area | |
| active duty or esp (US) active duty | |
| —n | |