- any of a group of natural or synthetic polymers made up of amino acids chemically linked together; this class includes the proteins
See also peptide
WordReference Random House Unabridged Dictionary of American English © 2026
pol•y•pep•tide
(pol′ē pep′tīd, -tid),USA pronunciation n. [Biochem.]
- Biochemistrya chain of amino acids linked together by peptide bonds and having a molecular weight of up to about 10,000.
- poly- + peptide 1900–05
Collins Concise English Dictionary © HarperCollins Publishers::
polypeptide /ˌpɒlɪˈpɛptaɪd/ n
'polypeptide' also found in these entries (note: many are not synonyms or translations):
ACTH
- gene
- peptide
- relaxin
- sequence
- sequencing
- ubiquitin
- vasopressin
- alpha helix
- bacitracin
- calcitonin
- cistron
- colistin
- dactinomycin
- endopeptidase
- ergotamine
- exopeptidase
- glycyl
- hirudin
- insulin
- lipotropin
- oxytocin
- parathyroid hormone
- polymyxin
- posttranslational
- prolactin
- protein
- proteinoid
- proteoglycan
- secretin
- somatostatin