lubricant
/'lu:brikənt/
Definition
Noun: A substance, typically a liquid or grease, that is applied to surfaces in contact with each other to reduce friction and wear, and to facilitate smooth movement.
Usage
A lubricant is used to minimize friction between moving parts in machinery, engines, or other mechanical systems. It creates a thin film between surfaces, allowing them to slide past each other more easily, which reduces heat generation and prevents damage.
Examples
- Regular application of a high-quality lubricant is essential for the longevity of bicycle chains.
- The mechanic recommended a specific lubricant for the squeaky door hinges.
- In engineering, selecting the correct lubricant for the operating temperature is critical.
Advanced Usage
- Figurative Use: The term can be used metaphorically to describe something that makes a process or interaction run more smoothly.
- Humor can be a social lubricant that eases tension in awkward situations.
- Personal Lubricant: A specific type used to reduce friction during intimate human contact or medical examinations.
Variants and Related Words
- Lubricate (verb): To apply a lubricant to something.
- You must lubricate the bearings every six months.
- Lubrication (noun): The action of applying a lubricant or the condition of being lubricated.
- Proper lubrication of the engine is vital.
- Lubricious (adjective): Slippery or smooth; often used in a figurative sense to mean lewd or offensively suggestive.
Synonyms
- Grease
- Oil
- Lubricating agent
- Lubricator
Related Phrases
- Cutting fluid/lubricant: A special lubricant used in metalworking to cool and lubricate the cutting tool and workpiece.
- Dry lubricant: A lubricant, such as graphite or molybdenum disulfide powder, that does not require a liquid base.
Noun
-
a substance capable of reducing friction by making surfaces smooth or slippery
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