noun, verb, brimmed, brim⋅ming.| 1. | the upper edge of anything hollow; rim; brink: the brim of a cup. |
| 2. | a projecting edge: the brim of a hat. |
| 3. | margin. |
| 4. | to be full to the brim. |
| 5. | to fill to the brim. |

brim (brĭm)
n.
The rim of the upper opening of the pelvis.