What does lubrication mean?
Lubrication is the process of putting oil, grease, or another lubricant between surfaces that move against one another. It reduces friction, heat, noise, and wear, making it essential in engines, machinery, tools, bicycles, and many other mechanical systems. The word is also used figuratively for making communication or an activity smoother, though this sense can carry a suggestive implication in informal contexts. In ordinary technical writing, lubrication usually names an ongoing maintenance task rather than the lubricant itself: one might discuss engine lubrication, check a lubrication system, or schedule regular lubrication. The related word lubricant refers to the substance applied, while lubrication describes the action or process.
nounThe application of a lubricant, or the process of reducing friction between moving surfaces. It can also refer more broadly to the condition of being lubricated.
- The process of introducing a lubricant between surfaces to reduce friction, wear, or noise.
- The state of being lubricated.
- The application of oil, grease, or another substance to machinery or other equipment.
"Regular lubrication keeps the engine running smoothly and helps prevent wear."
"The technician checked the lubrication of the moving parts before starting the machine."
"Good lubrication of the bicycle chain makes pedalling quieter and easier."
Rare; lubrication is normally used as an uncountable noun.
"The technician carried out lubrications of the gears throughout the day."
Without lubrication, friction can turn a smoothly running machine into a noisy, heat-generating problem.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does lubrication come from?
The word comes from Latin lubricare, meaning “to make slippery,” from lubricus, “slippery” or “smooth.” English borrowed the Latin-derived stem in the 16th century, first in the form lubricate and later with the noun suffix -ation to form lubrication. The same root appears in lubricant, lubricious, and lubricity, all connected with smoothness, slipperiness, or reduced friction.
Related word forms
How lubrication is actually used
In technical and mechanical contexts, lubrication is usually an uncountable process. In figurative use, especially informal or suggestive contexts, it can mean the application of charm or persuasive language.
Easily confused with lubrication
Lubrication is the process of applying a lubricant, whereas a lubricant is the substance itself.