peptone

noun
pep·​tone | \ ˈpep-ˌtōn How to pronounce peptone (audio) \

Definition of peptone

: any of various water-soluble products of partial hydrolysis of proteins

Examples of peptone in a Sentence

Recent Examples on the Web Once completed, the 60,000 square foot biotech plant will be used to make animal-free peptone proteins that can be used to grow bacteria and other cultures in a lab. Dee Depass, Star Tribune, 22 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'peptone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of peptone

1855, in the meaning defined above

History and Etymology for peptone

German Pepton, from Greek, neuter of peptos cooked

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Time Traveler for peptone

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The first known use of peptone was in 1855

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Dictionary Entries Near peptone

peptonate

peptone

peptonephridium

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Cite this Entry

“Peptone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peptone. Accessed 24 Sep. 2021.

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More Definitions for peptone

peptone

noun
pep·​tone | \ ˈpep-ˌtōn How to pronounce peptone (audio) \

Medical Definition of peptone

1 : any of various protein derivatives that are formed by the partial hydrolysis of proteins (as by enzymes of the gastric and pancreatic juices or by acids or alkalies), that are not coagulated by heat, and that are soluble in water but unlike proteoses are not precipitated from solution by saturation with ammonium sulfate
2 : a complex water-soluble product that contains peptones and other protein derivatives, is obtained by digesting protein (as meat) with an enzyme (as pepsin or trypsin), and is used chiefly in nutrient media in bacteriology

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