Word Study
lubricant
CIDE DICTIONARY
lubricant, a. [L. lubricans, p. pr. of lubricare, See Lubricate.].
Lubricating. [1913 Webster]
lubricant, n.
That which lubricates; specifically, a substance, as oil, grease, graphite, etc., used for reducing the friction of the working parts of machinery. [1913 Webster]
OXFORD DICTIONARY
lubricant, n. & adj.
--n. a substance used to reduce friction.
--adj. lubricating.
--n. a substance used to reduce friction.
--adj. lubricating.
For further exploring for "lubricant" in Webster Dictionary Online