lubricant

noun lu·bri·cant \ ˈlü-bri-kənt \
Updated on: 12 Nov 2017

Definition of lubricant

1 : a substance (such 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 in a Sentence

  1. The car's axles need more lubricant.

  2. using humor as a social lubricant

Recent Examples of lubricant from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lubricant.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of lubricant

circa 1828


LUBRICANT Defined for English Language Learners

lubricant

noun

Definition of lubricant for English Language Learners

  • : 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


LUBRICANT Defined for Kids

lubricant

noun lu·bri·cant \ ˈlü-bri-kənt \

Definition of lubricant for Students

: something (as oil or grease) that makes a surface smooth or slippery

Medical Dictionary

1

lubricant

adjective lu·bri·cant \ ˈlü-bri-kənt \

medical Definition of lubricant

: serving to lubricate a surface or part

2

lubricant

noun

medical Definition of lubricant

: a substance that serves to lubricate a surface or part
  • normally, the intestinal passage requires no artificial lubricant
  • —E. B. Steen & Ashley Montagu


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