astringence vs astringency

astringence and astringency both are nouns.

Word	Noun	Adjective	Verb	Adverb
astringence	Yes	No	No	No
astringency	Yes	No	No	No

As nouns, astringence and astringency are synonyms defined as:

astringence and astringency: a sharp astringent taste; the taste experience when a substance causes the mouth to pucker

astringence (noun)	astringency (noun)
a sharp astringent taste; the taste experience when a substance causes the mouth to pucker	the ability to contract or draw together soft body tissues to check blood flow or restrict secretion of fluids
	a sharp astringent taste; the taste experience when a substance causes the mouth to pucker