Source : Webster's Revised Unabridged Dictionary (1913)

Parapeptone \Par`a*pep"tone\, n. [Pref. para- + peptone.]
   (Phisiol. Chem.)
   An albuminous body formed in small quantity by the peptic
   digestion of proteids. It can be converted into peptone by
   pancreatic juice, but not by gastric juice.