heliogravure vs gravure

heliogravure and gravure both are nouns.

Word	Noun	Adjective	Verb	Adverb
heliogravure	Yes	No	No	No
gravure	Yes	No	No	No

As nouns, heliogravure and gravure are synonyms defined as:

Other synonyms of heliogravure include photogravure.

heliogravure (noun)	gravure (noun)
an intaglio print produced by gravure	the act of intaglio printing
	an intaglio print produced by gravure
	a printing plate used in the process of gravure
	a printing process that uses an etched or engraved plate; the plate is smeared with ink and wiped clean, then the ink left in the recesses makes the print