(adjective) : ăcĭdus, a, um, aceo
* Sour, tart, acid.
* Lit.: sapor,Plin. 15, 27, 32, § 106; sorba,Verg. G. 3, 380: inula,Hor. S. 2, 2, 43: lac,Plin. 28, 9, 36, § 135: caseus,ib. 9, 34, § 132: acidissumum acetum,Plaut. Ps. 2, 4, 49.
* Transf.
* Fig., sharp, keen, pungent: homo acidae linguae,Sen. Contr. 5, 34; cf. Quint. 6, 3, 53: quod petis, id sane est invisum acidumque duobus,unpleasant, disagreeable,Hor. Ep. 2, 2, 64.—Adv.: ăcĭde, bitterly, disagreeably: non acide feras,Vulg. Ecclus. 4, 9.—Comp.: sibi acidius fuit,Petr. S. 92.
* Acida creta, chalk steeped in vinegar, Mart. 6, 93.

s. TLL