D defs.my
Entry 1 sense Webster, 1913

Valeric

· Va·ler·ic · IPA /ˈvælərɪk/
01 a. Valerianic; specifically, designating any one of three metameric acids, of which the typical one (called also inactive valeric acid), C4H9C…
  1. 1.
    Valerianic; specifically, designating any one of three metameric acids, of which the typical one (called also inactive valeric acid), C4H9CO2H, is obtained from valerian root and other sources, as a corrosive, mobile, oily liquid, having a strong acid taste, and an odor of old cheese.(Chem.)
Phrases & compounds
Active valeric acid — a metameric variety which turns the plane of polarization to the right, although formed by the oxidation of a levorotatory amyl alcohol.