grease

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grease,

mixture of lubricant and thickener. It is used to reduce friction between surfaces from which oils would leak away or cause damage by dripping, or where lubrication must be assured for extended periods. Many greases are mixtures of mineral oil and soap. The more common of them contain a calcium-base soap that withstands water but not high temperature, or a sodium-base soap that withstands higher temperatures and adheres well but dissolves in water. Other soaps used in greases have bases of lithium, aluminum, barium, or strontium. Nonsoap thickeners include carbon black, which is unaffected by temperature and is therefore used with extreme low-temperature lubricants; silica gel; and bentonite, a clay developed for universal greases. Solid lubricants are sometimes used for extreme bearing pressures and high temperatures. Synthetic oils are sometimes used for special conditions, generally temperature extremes.

grease

[grēs]
(materials)
Rendered, inedible animal fat that is soft at room temperature and is obtained from lard, tallow, bone, raw animal fat, and other waste products.
A lubricant in the form of a solid to semisolid dispersion of a thickening agent in a fluid lubricant, such as petroleum oil thickened with metallic soap.

grease

1. any thick fatty oil, esp one used as a lubricant for machinery, etc.
2. Vet science inflammation of the skin of horses around the fetlocks, usually covered with an oily secretion
References in classic literature ?
He said he would split open a raw Irish potato and stick the quarter in between and keep it there all night, and next morning you couldn't see no brass, and it wouldn't feel greasy no more, and so anybody in town would take it in a minute, let alone a hair-ball.
He was moistened before and behind with a greasy liquid which the host recognized as his best olive oil.
From the former she took some greasy letters, and put in their place the bank-notes, and from the bag took two or three crowns of six livres each, which, in all probability, formed the entire fortune of the miserable couple.
But the scullery you would not care to see; it is greasy, dirty, and odoriferous, while the stairs are in rags, and the walls so covered with filth that the hand sticks fast wherever it touches them.
You feel that they are dishonestly locked up, to be hunted about from wharf to wharf on a dark, greasy, square pool of black water as a brutal reward at the end of a faithful voyage.
I have no doubt in the world that you are doing well in that greasy Flanders; living probably on the fat of the unctuous land; sitting like a black-haired, tawny-skinned, long-nosed Israelite by the flesh-pots of Egypt; or like a rascally son of Levi near the brass cauldrons of the sanctuary, and every now and then plunging in a consecrated hook, and drawing out of the sea, of broth the fattest of heave-shoulders and the fleshiest of wave-breasts.
Here, however, is a small piece of ribbon, which from its form, and from its greasy appearance, has evidently been used in tying the hair in one of those long queues of which sailors are so fond.
She sat in a blaze of oppressive heat, in a cloud of moving dust, and her eyes could only wander from the walls, marked by her father's head, to the table cut and notched by her brothers, where stood the tea-board never thoroughly cleaned, the cups and saucers wiped in streaks, the milk a mixture of motes floating in thin blue, and the bread and butter growing every minute more greasy than even Rebecca's hands had first produced it.
Think of the hypocrite with his greasy smile penning his leading article, and arranging the foulness of the public placard.
And, taking from her pocket a rather greasy porte-monnaie, she extracted from it a small glazed visiting card, and presented the latter to her patron.
About a mile up the road we came across our artilleryman sitting very stiffly on the edge of a culvert with a greasy handkerchief on his knees.
These soiled, once-blue overalls, these heavy, manure-spotted shoes, this greasy, shapeless straw hat, with its dozen matches showing their red heads over the band, the good soils and fertilizers of Kansas resting placidly in his ears and the lines of his neck--such a Romeo might not tempt his Juliet; he must spruce up.