Standard Lemma guide

peptone

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • General-American: /ˈpɛptoʊn/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

Any water-soluble mixture of polypeptides and amino acids formed by the partial hydrolysis of protein.

Definition source: English Wiktionary via Wiktextract

Topics: biochemistry, biology, chemistry, microbiology, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

any of various water-soluble compounds that form by hydrolysis in the digestion of proteins to amino acids

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: organic compound

History

Etymology

Etymology tree Proto-Indo-European *pekw- Proto-Indo-European *pékw-ye- Proto-Hellenic *péťťō Ancient Greek πέσσω (péssō)bf. Ancient Greek πέπτω (péptō) Ancient Greek πεπτόν (peptón)der. German Peptonbor. English peptone From German Pepton, from Ancient Greek πεπτόν (peptón, “cooked, digested”) derived from πέπτω (péptō, “soften, ripen, boil, cook, bake, digest”).

Across languages

Translations

5 source translations are retained for this English entry.

  • French: peptone — water-soluble product of partial protein hydrolysis
  • Greek: πεπτόνη (peptóni) — water-soluble product of partial protein hydrolysis
  • Italian: peptone — water-soluble product of partial protein hydrolysis
  • Portuguese: peptona — water-soluble product of partial protein hydrolysis
  • Spanish: peptona — water-soluble product of partial protein hydrolysis