Dictionary

lubricant

noun lu·bri·cant \ˈlü-bri-kənt\

: a substance (such as grease or oil) that causes something (such as a machine part) to be slippery and to move more smoothly

: something that makes it easier for people to work or talk with each other

Full Definition of LUBRICANT

1
:  a substance (as grease) capable of reducing friction, heat, and wear when introduced as a film between solid surfaces
2
:  something that lessens or prevents friction or difficulty <a social lubricant>
lubricant adjective

Examples of LUBRICANT

  1. The car's axles need more lubricant.
  2. using humor as a social lubricant

First Known Use of LUBRICANT

circa 1828

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