lubricateverb [ T ]
uk/ˈluː.brɪ.keɪt/us/ˈluː.brə.keɪt/to use a substance such as oil to make a machine operate more easily, or to prevent something sticking or rubbing:
A car engine needs to be well lubricated with oil.
lubrication
noun [ U ] uk/ˌluː.brɪˈkeɪ.ʃən/us/ˌluː.brəˈkeɪ.ʃən/informal lube