Reducing friction by providing a smooth film as a covering over parts that move against each other; lubricating.
Webster's New World
Other Word Forms of Lubricant
Lubricant Sentence Examples
Whale-oil is principally used in oiling wools for combing, in batching flax and other vegetable fibres, in currying and chamois leather-making, and as a lubricant for machinery.
Petroleum has very long been known as a source of light and heat, while the use of crude oil for the treatment of wounds and cutaneous affections, and as a lubricant, was even more general and led to the raw material being an article of commerce at a still earlier date.
The connective tissue is supplied normally with a certain amount of these mucinoid substances, no doubt acting as a lubricant.
To prevent corrosion the rope should be treated at intervals with hot lubricant.
Elbow Grease Original is a mineral oil based thick cream lubricant.