The Collaborative International Dictionary of English v.0.48:

Uvic \U"vic\, a. [L. uva grape.] (Chem.)
   Pertaining to, or obtained from, grapes; specifically,
   designating an organic acid, C7H8O3 (also called
   pyrotritartaric acid), obtained as a white crystalline
   substance by the decomposition of tartaric and pyrotartaric
   acids.
   [1913 Webster]