. "\"The chemical reactions and pathways involving progesterone, a steroid hormone produced in the ovary which prepares and maintains the uterus for pregnancy. Also found in plants.\" [GOC:jl, http://www.cogsci.princeton.edu/]" . . "progesterone metabolic process" . "progesterone metabolism" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .