Siberia - a vast Asian region of Russia; famous for long cold winters

river - a large natural stream of water (larger than a creek); "the river was navigable for 50 miles"

induction of labor - (obstetrics) inducing the childbirth process artificially by administering oxytocin or by puncturing the amniotic sac

presentation - (obstetrics) position of the fetus in the uterus relative to the birth canal; "Cesarean sections are sometimes the result of abnormal presentations"

incompetent cervix - (obstetrics) uterine cervix that becomes dilated before term and without labor often resulting in miscarriage or premature birth

medical specialty, medicine - the branches of medical science that deal with nonsurgical techniques

fetology, foetology - the branch of medicine concerned with the fetus in the uterus

perinatology - the branch of obstetrics concerned with the anatomy and physiology and diagnosis and treatment of disorders of the mother and the fetus or newborn baby during late pregnancy and childbirth and the puerperium

nullipara - (obstetrics) a woman who has never give birth to a child

gravida I, primigravida - (obstetrics) a woman who is pregnant for the first time

para I, primipara - (obstetrics) woman who has been delivered of a child for the first time

quadripara - (obstetrics) woman who has given birth to a viable infant in each of four pregnancies

quintipara - (obstetrics) woman who has given birth to a viable infant in each of five pregnancies

para, parity - (obstetrics) the number of live-born children a woman has delivered; "the parity of the mother must be considered"; "a bipara is a woman who has given birth to two children"