Terpenylic

Ter`pe`nyl´ic


a.1.(Chem.) 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.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.