What is "acescent"

Acescent \A*ces"cent\, a. [L. acescens, -entis, p. pr. of acescere to turn sour; inchoative of acere to be sour: cf. F. acescent. See Acid.] Turning sour; readily becoming tart or acid; slightly sour.
--Faraday.

Acescent \A*ces"cent\, n. A substance liable to become sour.

a. Turning sour; readily becoming tart or acid; slightly sour. n. A substance liable to become sour.