cyclopeptide

[ sī′klō-pĕptīd′ ]

n.

A polypeptide in which the terminal amine and carboxyl groups form a peptide bond, thus making the compound cyclic.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.