'Lubrication' definitions:

Definition of 'lubrication'

From: WordNet
noun
The condition of having been made smooth or slippery by the application of a lubricant
noun
An application of a lubricant to something

Definition of 'Lubrication'

From: GCIDE
  • Lubrication \Lu`bri*ca"tion\, n. The act of lubricating; the act of making slippery. [1913 Webster]