Acetous
Pronunciation : A*ce"tous (#; 277)
Part of Speech : a.
Etymology : [L. acetum vinegar, fr. acere to be sour.]
Definition : 1. Having a sour taste; sour; acid. "An acetous spirit." Boyle. "A liquid of an acetous kind." Bp. Lowth.
2. Causing, or connected with, acetification; as, acetous fermentation. Acetous acid, a name formerly given to vinegar.
Source : Webster's Unabridged Dictionary, 1913