peptide

See also: Peptide

English

Etymology

From peptone, partially hydrolyzed protein, or German Peptid, from German Pepton, from Ancient Greek πεπτόν (peptón, “cooked, digested”) derived from πέπτω (péptō, “soften, ripen, boil, cook, bake, digest”).

Pronunciation

• IPA^(key): /ˈpɛptaɪd/

• Audio (Southern England):

  (file)

• Audio (US):

  (file)

Noun

peptide (plural peptides)

1. (organic chemistry) Any of a class of organic compounds consisting of various numbers of amino acids in which the amine of one is reacted with the carboxylic acid of the next to form an amide bond.
   • 2004, Harold McGee, chapter 1, in On Food and Cooking: The Science and Lore of the Kitchen, Scribner, →ISBN:

     When it’s digested, its long amino-acid chains are first broken down into smaller fragments, or peptides. It turns out that many hormones and drugs are also peptides, and a number of casein peptides do affect the body in hormone-like ways.

2. (chemistry) The peptide bond itself.
3. (euphemistic, usually construed as plural) performance-enhancing drugs, often a synthetic peptide compound
   • 2024 June 3, Reddit‎, archived from the original on 19 March 2025:

     Please be patient with me, I get hundreds of emails a day in regards to anything fitness related including diet, recipes, eating schedules, work out routines, recommending what peptides to take for what and so on.

   • 2025 March 19, Reddit‎, archived from the original on 19 March 2025:

     It truly doesn’t, funny how so many people in this sub keep buying certain peptides for the placebo.

Hyponyms

• See also Thesaurus:peptide

Derived terms

• antipeptide
• atrial natriuretic peptide
• beta-peptide
• biopeptide
• C-peptide
• cyclopeptide
• decapeptide
• depsipeptide
• dipeptide
• dodecapeptide
• eicosapeptide
• eupeptide
• glycopeptide
• heptapeptide
• hexadecapeptide
• homopeptide
• iminopeptide
• immunopeptide
• interpeptide
• intrapeptide
• isopeptide
• lanthipeptide
• lasso peptide
• lipopeptide
• monopeptide
• mucopeptide
• neuropeptide
• nonapeptide
• nonglycopeptide
• nonpeptide
• octadecapeptide
• octapeptide
• oligopeptide
• pentapeptide
• peptide bond
• peptide chain
• peptide nucleic acid
• peptidergic
• phosphopeptide
• polypeptide
• pro-peptide
• pseudopeptide
• radiopeptide
• sactipeptide
• telopeptide
• tetracopeptide
• tetrapeptide
• thiopeptide
• tridecapeptide
• tripeptide
• undecapeptide
• vasoactive intestinal peptide

Translations

class of organic compounds

Armenian: պեպտիդ (hy) (peptid) Catalan: pèptid m Chinese: Cantonese: 肽 (taai3) Mandarin: 肽 (zh) (tài) Czech: peptid m Danish: peptid n Esperanto: peptido Finnish: peptidi (fi) French: peptide (fr) m Galician: péptido m German: Peptid (de) n Greek: πεπτίδιο (el) n (peptídio) Icelandic: peptíð n Ido: peptido (io) Italian: peptide (it) Japanese: ペプチド (ja) (pepuchido) Khmer: ប៉ិបទីត (pəptiit) Korean: 펩타이드 (peptaideu), 펩티드 (peptideu) Maori: pētini, pepetai Polish: peptyd (pl) m Portuguese: peptídeo m, peptídio m, péptido m, peptido m Romanian: peptidă (ro) f Russian: пепти́д (ru) m (peptíd) Spanish: péptido (es) m Swedish: peptid (sv) c Turkish: peptit

Further reading

• peptide on Wikipedia.Wikipedia

French

Etymology

From English peptide.

Pronunciation

• IPA^(key): /pɛp.tid/

• Audio (France (Lyon)):

  (file)

• Homophone: peptides

Noun

peptide m (plural peptides)

1. (biochemistry) peptide

Further reading

• “peptide”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

Italian

Italian Wikipedia has an article on:

peptide

Wikipedia ^it

Pronunciation

• IPA^(key): /pepˈti.de/
• Rhymes: -ide
• Hyphenation: pep‧tì‧de

Noun

peptide m (plural peptidi)

1. (biochemistry) peptide

Derived terms

• peptidico