occipitoanterior position

oc·cip·i·to·an·te·ri·or po·si·tion (OA),

a cephalic presentation of the fetus with its occiput under the symphysis or rotated toward the right (right occipitoanterior, ROA) or to the left (left occipitoanterior, LOA) acetabulum of the mother.
Farlex Partner Medical Dictionary © Farlex 2012

oc·cip·i·to·an·te·ri·or po·si·tion

(OA) (ok-sip'i-tō-an-tēr'ē-ŏr pŏ-zish'ŏn)
A cephalic presentation of the fetus with its occiput turned toward the right (right occipitoanterior, ROA) or to the left (left occipitoanterior, LOA) acetabulum of the mother.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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References in periodicals archive ?
From this study, the interval of head-to-body between parity was not significant, OP position versus occipitoanterior position had no difference.
Compared with fetuses in the occipitoanterior position, perinatal outcomes were not affected by the occipitoposterior position, Dr.