astringency vs astringence

astringency and astringence both are nouns.

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

As nouns, astringency and astringence are synonyms defined as:

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

astringency (noun)	astringence (noun)
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
a sharp astringent taste; the taste experience when a substance causes the mouth to pucker