noun, verb, greased, greasing.| 1. | the melted or rendered fat of animals, esp. when in a soft state. |
| 2. | fatty or oily matter in general; lubricant. |
| 3. | Also called grease wool. wool, as shorn, before being cleansed of the oily matter. |
| 4. | Also called grease-heel [grees-heel] . Veterinary Pathology. inflammation of a horse's skin in the fetlock region, attended with an oily secretion. |
| 5. | Informal. a bribe. |
| 6. | to put grease on; lubricate: to grease the axle of a car. |
| 7. | to smear or cover with grease. |
| 8. | to cause to occur easily; smooth the way; facilitate. |
| 9. | Informal. to bribe. |
| 10. | grease someone's palm. palm 1 (def. 19). |

grease (grēs) n.
[Middle English grese, from Anglo-Norman grece, from Vulgar Latin *crassia, from Latin crassus, fat, thick.] grease'less adj., grease'proof' adj. |
grease
|
grease
In addition to the idioms beginning with grease, also see elbow grease; like greased lightning; squeaky wheel gets the grease.
grease
thick, oily lubricant consisting of inedible lard, the rendered fat of waste animal parts, or a petroleum-derived or synthetic oil containing a thickening agent
Learn more about grease with a free trial on Britannica.com.