Dictionary
nor•e•thy•no•drel
Pronunciation: (nôr"u-thī'nu-drul, nô-reth'u-nu-drel"), [key]—
n. Pharm.
a progestin, C
20H
26O
2, used in combination with an estrogen in some oral contraceptives.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.