àcid

Etymology
.

Adjective

 * 1) acid; sour; tart having a sharp taste such as that of vinegar or a lemon
 * 2)  acid; acidic pertaining to an acid
 * 3)  acidic containing a high proportion of silica
 * 4)  acidic having a pH less than 7

Noun

 * 1) acid a food with a sharp taste
 * 2)  acid a substance which is capable of providing H+ ions to a base to form a salt
 * 3)  acid; LSD

Derived terms