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Referring to a fetus that remains in the uterus longer than the normal gestational period; that is, longer than 42 weeks (288 days) in humans.
post·ma·ture, postmature infant , postterm infant (pōst'mă-chŭr', in'fănt, pōst-tĕrm')
Referring to a fetus that remains in the uterus longer than the normal gestational period, i.e., longer than 42 weeks (288 days) in humans, which puts the child at risk because of inadequate placental function. The infant usually has wrinkled skin, and sometimes more serious abnormalities.
postmature(pōst″mă-tūr′) [″ + maturus, ripe]
Pert. to an infant born after an estimated 42 weeks' gestation, who exhibits findings consistent with postmaturity syndrome.