grease


grease
greaseless, adj.greaselessness, n.greaseproof, adj.
n. /grees/; v. /grees, greez/, n., v., greased, greasing.
n.
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'/. Vet. Pathol. inflammation of a horse's skin in the fetlock region, attended with an oily secretion.
5. Informal. a bribe.
v.t.
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. See palm1 (def. 11).
[1250-1300; ME grese, grece, greice < AF grece, gresse, OF craisse (F graisse) < VL *crassia, equiv. to L crass(us) fat, thick + -ia n. suffix]

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      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.

      White grease is made from inedible hog fat and has a low content of free fatty acids. Yellow grease is made from darker parts of the hog and may include parts used to make white grease. Brown grease contains beef and mutton fats as well as hog fats. Fleshing grease is the fatty material trimmed from hides and pelts. Bone grease, hide grease, and garbage grease are named according to their origin. In some factories, food offal is used along with animal carcasses, butcher-shop scraps, and garbage from restaurants for recovery of fats.

      Greases of mineral or synthetic origin consist of a thickening agent dispersed in a liquid lubricant such as petroleum oil or a synthetic fluid. The thickening agent may be soap, an inorganic gel, or an organic substance. Other additives inhibit oxidation and corrosion, prevent wear, and change viscosity. The fluid component is the more important lubricant for clearances between parts that are relatively large, but for small clearances the molecular soap layers provide the lubrication.

      Synthetic grease may consist of synthetic oils containing standard soaps or may be a mixture of synthetic thickeners, or bases, in petroleum oils. Silicones (silicone) are greases in which both the base and the oil are synthetic. Synthetic greases are made in water-soluble and water-resistant forms and may be used over a wide temperature range. The synthetics can be used in contact with natural or other rubbers because they do not soften these materials.

      Special-purpose greases may contain two or more soap bases or special additives to gain a special characteristic.

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Universalium. 2010.

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  • grease — [grēs; ] for v., also [ grēz] n. [ME gresse < OFr craisse < VL * crassia < L crassus, fat, thick: see CRASS] 1. melted animal fat 2. any thick, oily substance or lubricant, esp. the substance that is put on the moving parts of… …   English World dictionary

  • Grease — (gr[=e]s), n. [OE. grese, grece, F. graisse; akin to gras fat, greasy, fr. LL. grassus thick, fat, gross, L. crassus. Cf. {Crass}.] 1. Animal fat, as tallow or lard, especially when in a soft state; oily or unctuous matter of any kind. [1913… …   The Collaborative International Dictionary of English

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  • grease — ► NOUN 1) a thick oily substance, especially one used as a lubricant. 2) animal fat used or produced in cooking. ► VERB ▪ smear or lubricate with grease. ● grease the palm of Cf. ↑grease the palm of ● …   English terms dictionary


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