ethisterone
noun
ethis·ter·one
i-ˈthis-tə-ˌrōn 
: a synthetic orally effective female sex hormone C21H28O2 administered in cases of progesterone deficiency
called also anhydrohydroxyprogesterone, pregneninolone
Cite this Entry
“Ethisterone.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/ethisterone. Accessed 24 May. 2025.
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