D defs.my
Entry 1 sense Webster, 1913

Terpenylic

· Ter·pe·nyl·ic · IPA
01 a. Of, pertaining to, or designating, an acid, C8H12O4 (called also terpentic acid), homologous with terebic acid, and obtained as a white cry…
  1. 1.
    Of, pertaining to, or designating, an acid, C8H12O4 (called also terpentic acid), homologous with terebic acid, and obtained as a white crystalline substance by the oxidation of oil of turpentine with chromic acid.(Chem.)