• (a.) Pertaining to, or designating, an acid (called also lithic acid) found in certain red precipitates of urine. See Uric.
Ro·sac'ic adjective [ See Rosaceous .] (Old med. Chem.) Pertaining to, or designating, an acid (called also lithic acid ) found in certain red precipitates of urine. See Uric . [ Obsolete]