lubricator
nounUK /ˈluːbrɪkeɪtə/
US /ˈluːbrɪkeɪtər/
A lubricator is a thing that puts oil or grease on parts so they move smoothly.
The mechanic used a lubricator to oil the squeaky wheel.
RELATED WORDS
OTHER MEANINGS
2. A device fitted to machinery that automatically supplies oil or grease to moving parts.
The steam engine's lubricator kept the pistons running smoothly.
3. A person whose job is to oil or grease machinery.
The lubricator walked the factory floor checking each machine.
4. A substance or device that reduces friction between surfaces.
Graphite acts as a lubricator in high-temperature settings.