Grease is a type of lubricant that is used to reduce friction between surfaces in contact. It is a semi-solid substance typically made by combining a base oil (which can be mineral, synthetic, or vegetable oil) with a thickening agent, often a soap or a non-soap compound. The thickening agent helps maintain the grease's viscosity and allows it to adhere to surfaces, preventing it from easily dripping or being displaced under pressure or movement.
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