[ 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.

Nearby words

  1. nordoff,
  2. nordrhein-westfalen,
  3. noreen,
  4. norepinephrine,
  5. norethandrolone,
  6. norethynodrel,
  7. norfloxacin,
  8. norfolk,
  9. norfolk island,
  10. norfolk island pine

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.