[rim] 
noun, verb, rimmed, rim⋅ming.| 1. | the outer edge, border, margin, or brink of something, esp. of a circular object. |
| 2. | any edge, margin, or frame added to or around a central object or area. |
| 3. | the outer circle of a wheel, attached to the hub by spokes. |
| 4. | a circular strip of metal forming the connection between an automobile wheel and tire, either permanently attached to or removable from the wheel. |
| 5. | a drive wheel or flywheel, as on a spinning mule. |
| 6. | Basketball. the metal ring from which the net is suspended to form the basket. |
| 7. | Journalism. the outer edge of a usually U-shaped copy desk, occupied by the copyreaders. Compare slot (def. 5). |
| 8. | Metallurgy. (in an ingot) an outer layer of metal having a composition different from that of the center. |
| 9. | to furnish with a rim, border, or margin. |
| 10. | (of a golf ball or putt) to roll around the edge of (a hole) but not go in. |
| 11. | Basketball. (of a basketball) to roll around (the rim of the basket) and not go in. |
| 12. | to coat or encrust the rim of (a glass): Rim each cocktail glass with salt. |
rim (rĭm)
n.
The border, edge, or margin of an organ or a part.