verb, -gat⋅ed, -gat⋅ing, adjective | 1. | to rub, grind, or reduce to a fine powder, as in a mortar, with or without the addition of a liquid. |
| 2. | Chemistry. to make a homogeneous mixture of, as gels. |
| 3. | Botany. having a smooth, glossy surface; glabrous. |