parapeptone

from The Century Dictionary.

• noun A proteid substance intermediate between albumin and peptone, obtained by neutralizing an acid solution in which pepsin has acted on a proteid body. It closely resembles syntonine.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Phisiol. Chem.) A proteinaceous 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun biochemistry 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.