"Peptone" is a word in ENGLISH

Collectively, in a broader sense, all the products
resulting from the solution of albuminous matter in either gastric or
pancreatic juice. In this case, however, intermediate products
(albumose bodies), such as antialbumose, hemialbumose, etc., are mixed
with the true peptones. Also termed albuminose.

The soluble and diffusible substance or substances into
which albuminous portions of the food are transformed by the action of
the gastric and pancreatic juices. Peptones are also formed from
albuminous matter by the action of boiling water and boiling dilute
acids.