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Word of the Day Tuesday, June 9, 2026

lubricant

/ˈlʌbrɪkənt/ noun · British & US
Valid in UKValid in US
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What does lubricant mean?

noun

A substance, such as oil or grease, that reduces friction between two surfaces in contact, or a substance that facilitates the smooth operation of a machine or process.

Example

"The mechanic applied a lubricant to the engine to prevent overheating."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for lubricant

Antonyms of lubricant

Rhymes with lubricant

Etymologically related