progesterone

pro·ges·ter·one

noun \prō-ˈjes-tə-ˌrōn\

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

Origin of PROGESTERONE

progestin + -sterone

First Known Use: 1935

Rhymes with PROGESTERONE

accident-prone, anticyclone, Asunción, Bois de Boulogne, bred-in-the-bone, close to the bone, Darby and Joan, eau de cologne, enterprise zone, fire-and-brimstone, foundation stone, mesocyclone, metallophone, Nuevo León, radiophone, strawberry roan, testosterone, videophone