Source : Webster's Revised Unabridged Dictionary (1913)

Peptohydrochloric \Pep`to*hy`dro*chlo"ric\, a. [See {Peptone},
   and {Hydrochloric}.] (Physiol. Chem.)
   Designating a hypothetical acid (called peptohydrochloric
   acid, pepsinhydrochloric acid, and chloropeptic acid) which
   is supposed to be formed when pepsin and dilute (0.1-0.4 per
   cent) hydrochloric acid are mixed together.