Designating a type of cephalic presentation in childbirth in which the fetal occiput is directed towards the posterior half of the mother's pelvis (usually towards the sacrum or left or right sacroiliac joint).
Origin
Mid 19th century. After French occipito-postérieur.
Definition of occipitoposterior in US English:
occipitoposterior
adjective
Obstetrics
Designating a type of cephalic presentation in childbirth in which the fetal occiput is directed towards the posterior half of the mother's pelvis (usually towards the sacrum or left or right sacroiliac joint).
Origin
Mid 19th century. After French occipito-postérieur.