The Collaborative International Dictionary of English v.0.48:

Glycocholic \Gly`co*chol"ic\, a. (Physiol. Chem.)
   Pertaining to, or composed of, glycocoll and cholic acid.
   [1913 Webster]

   Glycocholic acid (Physiol. Chem.), a conjugate acid,
      composed of glycocoll and cholic acid, present in bile in
      the form of a sodium salt. The acid commonly forms a
      resinous mass, but can be crystallized in long, white
      needles.
      [1913 Webster]