un lubricant

lubricant

[loo-bri-kuhnt]
noun
1.
a substance, as oil or grease, for lessening friction, especially in the working parts of a mechanism.
adjective
2.
capable of lubricating; used to lubricate.

Origin:
1815–25; < Latin lūbricant- (stem of lūbricāns), present participle of lūbricāre to make slippery. See lubric, -ant

nonlubricant, noun
unlubricant, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
lubricant (ˈluːbrɪkənt)
 
n
1.  a lubricating substance, such as oil
 
adj
2.  serving to lubricate
 
[C19: from Latin lūbricāns, present participle of lūbricāre. See lubricate]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

lubricant
early 19c., from L. lubricantem, prp. of lubricare "to make slippery or smooth," from lubricus "slippery."
Online Etymology Dictionary, © 2010 Douglas Harper
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