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labour
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A series of medical illustrations showing the stages of childbirth: the baby's position at the onset of labor, flexion, internal rotation of the head, extension, external rotation of the head, and the uterus immediately after birth with the placenta and umbilical cord.
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labour

childbirth
Also known as: labor
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labour, in human physiology, the physical activity experienced by the mother during parturition (q.v.), or childbirth.