| a chattering or flighty, light-headed person. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| RIM | |
| —abbreviation for | |
| Mauritania (international car registration) | |
| [From République Islamique de Mauritanie] | |
rim (rĭm)
n.
The border, edge, or margin of an organ or a part.
| RIM Mauritania (international vehicle ID) |