Dictionary
mac•ro•mol•e•cule
Pronunciation: (mak"ru-mol'u-kyOOl"), [key]—
n. Chem.
a very large molecule, as a colloidal particle, protein, or esp. a polymer, composed of hundreds or thousands of atoms.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.