macrocyclic: Meaning and Definition of

mac•ro•cy•clic

Pronunciation: (mak"rō-sī'klik, -sik'lik), [key]
— adj. Chem.
  1. having a ring structure consisting of more than 12 atoms.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.