lubricant vs lubricating substance

lubricant and lubricating substance both are nouns.

Word	Noun	Adjective	Verb	Adverb
lubricant	Yes	No	No	No
lubricating substance	Yes	No	No	No

As nouns, lubricant and lubricating substance are synonyms defined as:

lubricant and lubricating substance: a substance capable of reducing friction by making surfaces smooth or slippery

Other synonyms of lubricant include lube, lubricator.

lubricant (noun)	lubricating substance (noun)
a substance capable of reducing friction by making surfaces smooth or slippery	a substance capable of reducing friction by making surfaces smooth or slippery