Dictionary
meth•y•ser•gide
Pronunciation: (meth"u-sûr'jīd), [key]—
n. Pharm.
an ergot alkaloid derivative, C
21H
27N
3O
2, used in the prophylaxis and treatment of migraine and cluster headaches.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.