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Vinony

lubricating oil

noun

  1. oil used for lubrication of mechanical components
L1553863 on Wikidata ↗

Wiktionary

noun

  1. An oil for lubrication of engines and other components.

    “Safety devices ensure that the engines are automatically shut down in the event of overspeed, low pressure in the lubricating oil system, low cooling-water pressure, or high cooling-water temperature.”

    “Diesel maintenance schedules are benefiting from work done on the magnificent Hilger & Watts electronic spectrograph for oil analysis, which detects minute quantities of metals in samples of used lubricating oil; [...].”