'Lubricator' definitions:

Definition of 'lubricator'

From: WordNet
noun
A substance capable of reducing friction by making surfaces smooth or slippery [syn: lubricant, lubricator, lubricating substance, lube]

Definition of 'Lubricator'

From: GCIDE
  • Lubricator \Lu"bri*ca`tor\, n.
  • 1. One who, or that which, lubricates. " Lubricator of the fibers." --Burke. [1913 Webster]
  • 2. A contrivance, as an oil cup, for supplying a lubricant to machinery. [1913 Webster]