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
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
In a hallway closet near the primary bedroom, federal agents found 25 bottles of baby oil and 31 bottles of Astroglide lubricant.
—Jenna Sundel, MSNBC Newsweek, 13 June 2025
Other risks include vaginal irritation with spermicidal lubricants and yeast infections with glycerin and flavored lubricants.
—Md Published, Verywell Health, 6 June 2025
Binda said investigators found $9,000 in cash, substances that tested positive for MDMA and ketamine, lubricant and baby oil.
—Jenna Sundel, MSNBC Newsweek, 13 June 2025
See All Example Sentences for lubricant
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Rick Barrett, jsonline.com, 7 July 2025
In a hallway closet near the primary bedroom, federal agents found 25 bottles of baby oil and 31 bottles of Astroglide lubricant.
—Jenna Sundel, MSNBC Newsweek, 13 June 2025
Other risks include vaginal irritation with spermicidal lubricants and yeast infections with glycerin and flavored lubricants.
—Md Published, Verywell Health, 6 June 2025
Binda said investigators found $9,000 in cash, substances that tested positive for MDMA and ketamine, lubricant and baby oil.
—Jenna Sundel, MSNBC Newsweek, 13 June 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 22 Jul. 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?
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