Definition of lubricating oil in English:

lubricating oil

noun

mass noun
  • Oil used for lubricating an engine or component.

    ‘the loose rod caused lubricating oil to leak out’
    • ‘Cutting and lubricating oils and greases can block skin pores.’
    • ‘The ship was carrying 450 tonnes of fuel oil, 55 tonnes of marine diesel and 10 tonnes of lubricating oil.’
    • ‘Its units rotate on air bearings and hence require no lubricating oil; maintenance costs are said to be lower as a result.’
    • ‘From the main oil duct, the main bearings are directly supplied with lubricating oil.’
    • ‘I use a lubricating oil from a pump-style oilcan to keep the file wet during use.’