First Known Use: 1935
Dictionary
progesterone
noun pro·ges·ter·one \prō-ˈjes-tə-ˌrōn\
medical : a substance (called a hormone) that occurs naturally in women and female animals
Full Definition of PROGESTERONE
: a female steroid sex hormone C21H30O2 that is secreted by the corpus luteum to prepare the endometrium for implantation and later by the placenta during pregnancy to prevent rejection of the developing embryo or fetus; also : a synthetic steroid resembling progesterone in action
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Origin of PROGESTERONE
progestin + -sterone
Medical Dictionary
progesterone
noun pro·ges·ter·one \prō-ˈjes-tə-ˌrōn\
Medical Definition of PROGESTERONE
: a female steroid sex hormone C21H30O2 that is secreted by the corpus luteum to prepare the endometrium for implantation and later by the placenta during pregnancy to prevent rejection of the developing embryo or fetus; also : a synthetic steroid resembling progesterone in action
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