lubricant
lubricantnoun- a substance used for lubricating an engine or component, such as oil or grease
润滑剂;润滑油
adjective- lubricating
(用作)润滑的;减少磨擦的
a thin lubricant film.
薄润滑膜。
语源- early 19th cent.: from Latin lubricant- 'making slippery', from the verb lubricare (see lubricate)
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