photo-offset printing vs photo-offset

photo-offset printing and photo-offset both are nouns.

Word	Noun	Adjective	Verb	Adverb
photo-offset printing	Yes	No	No	No
photo-offset	Yes	No	No	No

As nouns, photo-offset printing and photo-offset are synonyms defined as:

photo-offset printing and photo-offset: a method of offset printing using photomechanical plates

photo-offset printing (noun)	photo-offset (noun)
a method of offset printing using photomechanical plates	a method of offset printing using photomechanical plates