peptone(redirected from peptone water)
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Any of various water-soluble protein derivatives formed by partial hydrolysis or digestion of proteins by an acid or enzyme, used in culture media in bacteriology.
[German Pepton, from Greek peptos, digested, from peptein, to digest; see pekw- in Indo-European roots.]
pep·ton′ic (-tŏn′ĭk) adj.
(Biochemistry) biochem any of a group of compounds that form an intermediary group in the digestion of proteins to amino acids. See also proteose
[C19: from German Pepton, from Greek pepton something digested, from peptein to digest]
any of a class of diffusible, soluble substances into which proteins are converted by partial hydrolysis.
[1855–60; < German Pepton < Greek peptón, neuter of peptós cooked, digested, v. adj. of péptein]
pep•ton′ic (-ˈtɒn ɪk) adj.