serigraphy vs printmaking

serigraphy and printmaking both are nouns.

Word	Noun	Adjective	Verb	Adverb
serigraphy	Yes	No	No	No
printmaking	Yes	No	No	No

As nouns, printmaking is a hypernym of serigraphy; that is, printmaking is a word with a broader meaning than serigraphy:

serigraphy: the act of making a print by the silkscreen method
printmaking: artistic design and manufacture of prints as woodcuts or silkscreens

serigraphy (noun)	printmaking (noun)
the act of making a print by the silkscreen method	artistic design and manufacture of prints as woodcuts or silkscreens