grease-gun

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WORDNET DICTIONARY

Noun grease-gun has 1 sense

grease-gun(n = noun.artifact) gun - a hand-operated pump that resembles a revolver; forces grease into parts of a machine;

is a kind of pump

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CIDE DICTIONARY

grease-gun, n.

A device held in the hand, having a supply of grease and attached to a reservoir of pressurized air, used to force grease between adjacent moving parts of a machine, especially in the bearings of motor vehicles. [WordNet 1.5]