a. 润滑的

n. 润滑物, 润滑油, 润滑剂

[化] 润滑剂

[医] 润滑的, 润滑剂

[ noun ]
a substance capable of reducing friction by making surfaces smooth or slippery
<noun.substance>

Lubricant \Lu"bri*cant\, n.
That which lubricates; specifically, a substance, as oil,
grease, graphite, etc., used for reducing the friction of the
working parts of machinery.


Lubricant \Lu"bri*cant\, a. [L. lubricans, p. pr. of lubricare,
See {Lubricate}.]
Lubricating.