peptone

[ pep-tohn ]

/ ˈpɛp toʊn /

noun Biochemistry.

any of a class of diffusible, soluble substances into which proteins are converted by partial hydrolysis.

Nearby words

peptidolytic, peptize, peptogenic, peptolysis, peptolytic, peptone, peptonic, peptonize, peptonoid, pepys, pepys' diary

Origin of peptone

1855–60; < German Pepton < Greek peptón, neuter of peptós cooked, digested, verbid of péptein

Related formspep·tone·like, adjectivepep·ton·ic

[pep-ton-ik] /pɛpˈtɒn ɪk/, adjectivepep·to·noid

[pep-tuh-noid] /ˈpɛp təˌnɔɪd/, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for peptone

Heat in the steamer at 100° C. for twenty minutes to complete the solution of the peptone.
The Elements of Bacteriological Technique|John William Henry Eyre
On the other hand, when peptone was introduced in larger quantity, viz., in a twenty per cent.
On Digestive Proteolysis|R. H. Chittenden
Thus, 7.5 grammes of peptone dissolved in water in such proportion as to make a five per cent.
On Digestive Proteolysis|R. H. Chittenden
Thus prepared, the peptone shows no signs of decomposition on keeping.
Scientific American Supplement, No. 611, September 17, 1887|Various

Protein, under the same conditions, is changed to a peptone.
A Civic Biology|George William Hunter

British Dictionary definitions for peptone

peptone

/ (ˈpɛptəʊn) /

noun

biochem any of a group of compounds that form an intermediary group in the digestion of proteins to amino acidsSee also proteose

Derived Formspeptonic (pɛpˈtɒnɪk), adjective

Word Origin for peptone

C19: from German Pepton, from Greek pepton something digested, from peptein to digest

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for peptone

peptone

1860, from German Pepton, from Greek pepton, neuter of peptos "cooked, digested" (see peptic).

Medicine definitions for peptone

peptone

[ pĕp′tōn′ ]

n.

Any of various soluble compounds that do not coagulate, are obtained by acid or enzyme hydrolysis of natural protein, and are used as nutrients in culture media.

Related formspep•ton′ic (-tŏn′ĭk) adj.