lubrication

American  

[loo-bri-key-shuhn] / ˌlu brɪˈkeɪ ʃən /

noun

1. the application of a lubricant to diminish friction.

   Without adequate lubrication, the machinery becomes inefficient, even dangerous.

2. the act of smoothing over a difficulty.

   Let’s avoid further trouble with a little diplomatic lubrication.

3. Slang. the provision or consumption of intoxicating drinks.

   The groom-to-be seems to have availed himself of a bit too much lubrication.

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Other Word Forms

• overlubrication
  noun
• relubrication
  noun
• self-lubrication
  noun

Etymology

Origin of lubrication

First recorded in 1800–10; lubric(ate) ( def. ) + -ation ( def. )

Explanation

When you grease the surface of something to make it move more smoothly and work better, you use lubrication. A bolt that's rusted in place might need some lubrication before being turned with a wrench. Friction can keep motors from running, screws from budging, and bicycle wheels from turning properly — lubrication is a technique you can use to reduce friction. Lubrication involves the use of a lubricant, a slippery or greasy substance that eases the resistance of the two surfaces. The Latin root of lubrication is lubricus, or "slippery."

Example Sentences

See Examples For:

lubrication

Powertrain Naturally aspirated liquid-cooled 90-degree V4 engine, 1,158-cc displacement, counter-rotating crankshaft, semi dry sump lubrication; six-speed manual transmission with straight-cut gears and multi-plate clutch, with slipper action on overrun; chain drive.

From The Wall Street Journal ● Aug. 29, 2026

However, during engine operation, moving parts such as pistons require constant lubrication, making it unavoidable that small amounts of engine oil enter the combustion chamber.

From Science Daily ● May 13, 2026

But that inward gaze is less of a consideration than lubrication on the mechanics of getting Carol from Point A, i.e.

From Salon ● Sep. 29, 2024

Rizzo and Trapelli are also working on using natural snail mucus in unconventional ways—their snail mucus extract has been used to produce eye drops that use snails’ natural lubrication to treat dry eye disease.

From National Geographic ● Jan. 8, 2024

There was a smell of lubrication and lathed brass.

From "The Martian Chronicles" by Ray Bradbury