progesterone

n. a hormone, secreted mainly by the corpus luteum in the ovary, that stimulates the proliferation of the endometrium (lining) of the uterus required for implantation of an embryo. If implantation occurs, progesterone continues to be secreted—first by the corpus luteum and then by the placenta—maintaining the pregnant uterus and preventing further release of egg cells from the ovary. It also stimulates development of milk-secreting cells in the breasts.

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Psychology term of the day

December 18th 2024

observer memory

an autobiographical memory that one remembers from the perspective of an outside observer. When retrieving an observer memory, the person sees himself or herself as an actor in the event. Also called third-person perspective memory. Compare field memory.