-er]
| 1. | foam or froth made by a detergent, esp. soap, when stirred or rubbed in water, as by a brush used in shaving or by hands in washing. |
| 2. | foam or froth formed in profuse sweating, as on a horse. |
| 3. | Informal. a state of excitement, agitation, nervous tension, or the like: He was in a lather over my delay. |
| 4. | to form a lather: a soap that lathers well. |
| 5. | to become covered with lather, as a horse. |
| 6. | to apply lather to; cover with lather: He lathered his face before shaving. |
| 7. | Informal. to beat or whip. |
