1. compounds consisting of two or more amino acids linked in a chain, smaller than proteins
Usage: biochemistry; plural form

Examples

• The researcher studied how peptides form the building blocks of proteins.
• Some peptides act as hormones in the human body.
• The laboratory synthesized several short peptides for testing.
• Collagen contains many peptides that give skin its structure.
• These peptides help regulate blood pressure naturally.
• The supplement contains bioactive peptides from milk protein.