changer vs adulterator

changer and adulterator both are nouns.

Word	Noun	Adjective	Verb	Adverb
changer	Yes	No	No	No
adulterator	Yes	No	No	No

As nouns, adulterator is a hyponym of changer; that is, adulterator is a word with a more specific, narrower meaning than changer:

changer: a person who changes something
adulterator: a changer who lessens the purity or effectiveness of a substance

Other hyponyms of changer include normaliser, normalizer, standardiser, standardizer.

changer (noun)	adulterator (noun)
an automatic mechanical device on a record player that causes new records to be played without manual intervention	a changer who lessens the purity or effectiveness of a substance
a person who changes something	any substance that lessens the purity or effectiveness of a substance