octapeptide

noun

oc·​ta·​pep·​tide ˌäk-tə-ˈpep-ˌtīd 

: a protein fragment or molecule (such as oxytocin or vasopressin) that consists of eight amino acids linked in a polypeptide chain

Word History

First Known Use

1931, in the meaning defined above

Medical Definition

octapeptide

noun

oc·​ta·​pep·​tide ˌäk-tə-ˈpep-ˌtīd 

: a protein fragment or molecule (as oxytocin or vasopressin) that consists of eight amino acids linked in a polypeptide chain