2 entries under this word

Acid

Ăç'id, a.

adjective

(ăs'id), a. [Lat. acidus, from acere, to be sour, Fr. acide.] Sour, sharp, or biting to the taste; tart; having the taste of vinegar; as, acid fruits or liquors.

Ăç'id, n.

noun

n. 1. A sour substance.

Sense 2. (Chem.) (a.) An electro-negative substance having the properties of combining with alkalies and alkaline oxyds, of reddening most blue vegetable colors, and usually with a strong, sharp taste. (b.) That substance which in the decomposition of a given compound is relatively electro-negative, is borne to the positive pole, and in its compounds exchanges hydrogen for a metal. “An hydrogenized body which can readily exchange its hydrogen for a metal.” Adling.