lubricant
noun
lu·bri·cant
ˈlü-bri-kənt 
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
The car's axles need more lubricant.
using humor as a social lubricant
Recent Examples on the Web
Baby oil and lubricant, specifically over 1,000 bottles, were among the paraphernalia discovered during the federal raids of Combs' homes in March 2024, U.S. attorney Damian Williams revealed in a September 2024 press conference.
—
Edward Segarra, USA Today, 2 July 2025
Authorities notably seized narcotics and more than 1,000 bottles of baby oil and lubricant at Combs’ homes in Miami and Los Angeles during the raids last year.
—Alexandra Del Rosario, Los Angeles Times, 2 July 2025
Another Fed previously testified that bottles of baby oil and lubricant were discovered at Diddy’s Miami manse.
—Victoria Bekiempis, Vulture, 13 June 2025
The importance of graphite, also used in steelmaking, nuclear power, lubricants and much more, cannot be overstated, according to research from Michigan State University.
—Rick Barrett, jsonline.com, 7 July 2025
See All Example Sentences for lubricant
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Edward Segarra, USA Today, 2 July 2025
Authorities notably seized narcotics and more than 1,000 bottles of baby oil and lubricant at Combs’ homes in Miami and Los Angeles during the raids last year.
—Alexandra Del Rosario, Los Angeles Times, 2 July 2025
Another Fed previously testified that bottles of baby oil and lubricant were discovered at Diddy’s Miami manse.
—Victoria Bekiempis, Vulture, 13 June 2025
The importance of graphite, also used in steelmaking, nuclear power, lubricants and much more, cannot be overstated, according to research from Michigan State University.
—Rick Barrett, jsonline.com, 7 July 2025
See All Example Sentences for lubricant
Cite this Entry
“Lubricant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lubricant. Accessed 6 Aug. 2025.
Copy CitationKids Definition
lubricant
noun
lu·bri·cant
ˈlü-bri-kənt
: something (as a grease or oil) capable of reducing friction when applied between moving parts
lubricant
adjective
Medical Definition
lubricant
1 of 2 adjective
lu·bri·cant
ˈlü-bri-kənt
: serving to lubricate a surface or part
lubricant
2 of 2 noun
: a substance that serves to lubricate a surface or part
normally, the intestinal passage requires no artificial lubricant—E. B. Steen & Ashley Montagu
E. B. Steen & Ashley MontaguLove words? Need even more definitions?
Merriam-Webster unabridged
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