potassium hydrogen tartrate vs tartar

potassium hydrogen tartrate and tartar both are nouns.

Word	Noun	Adjective	Verb	Adverb
potassium hydrogen tartrate	Yes	No	No	No
tartar	Yes	No	No	No

As nouns, potassium hydrogen tartrate and tartar are synonyms defined as:

potassium hydrogen tartrate and tartar: a salt used especially in baking powder

Other synonyms of potassium hydrogen tartrate include cream of tartar, potassium bitartrate.

potassium hydrogen tartrate (noun)	tartar (noun)
a salt used especially in baking powder	an incrustation that forms on the teeth and gums
	a fiercely vigilant and unpleasant woman
	a salt used especially in baking powder