[ nawr-eth-in-drohn ]
/ nɔrˈɛθ ɪnˌdroʊn /
an orally active progestin, C20H26O2, used as a progesterone, especially as an oral contraceptive in combination with an estrogen.
- norfolk island,
- norfolk island pine
Origin of norethindrone
by shortening and alteration of parts of its chemical name
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
[ nôr-ĕth′ĭn-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.