• (a.) Pertaining to, or designating, an acid (called also pyroracemic acid) obtained, as a liquid having a pungent odor, by the distillation of racemic acid.
Py·ru'vic adjective [ Pyro- + Latin uva a grape.] (Chemistry) Pertaining to, or designating, an acid (called also pyroracemic acid ) obtained, as a liquid having a pungent odor, by the distillation of racemic acid. 
of or derived from pyruvic acid.