[ nawr-eth-in-drohn ]
/ nɔrˈɛθ ɪnˌdroʊn /

noun Pharmacology.

an orally active progestin, C20H26O2, used as a progesterone, especially as an oral contraceptive in combination with an estrogen.

Origin of norethindrone

by shortening and alteration of parts of its chemical name Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for norethindrone


[ nôr-ĕthĭn-drōn′ ]


A progestational agent with some estrogenic and androgenic activity that is used as a substitute for progesterone and, in combination with an estrogen, as an oral contraceptive.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.