overriding

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overriding

 [o″ver-rīd´ing]
1. the slipping of either part of a fractured bone past the other.
2. extending beyond the usual position.

o·ver·rid·ing

(ō'vĕr-rīd-ing),
1. Slippage of the lower fragment of a broken long bone upward and beside the proximal portion.
2. Obsolete term denoting a fetal head that is palpable above the symphysis because of cephalopelvic disproportion.
3. Slippage of the bones of the fetal skull that occurs typically after an intrauterine fetal death or prolonged labor marked by cephalopelvic disproportion and extensive molding of the fetal head.

overriding

/over·rid·ing/ (o″ver-rīd´ing)
1. the slipping of either part of a fractured bone past the other.
2. extending beyond the usual position.

overriding

[-rī′ding]
Etymology: AS, ofer + ridan
1 n, the slipping of either part of a fractured bone past the other.
2 adj, extending beyond the usual position.

o·ver·rid·ing

(ō'vĕr-rīd'ing)
1. Slippage of the lower fragment of a broken long bone upward and next to the proximal portion.
2. Denoting a fetal head that is palpable above the symphysis because of cephalopelvic disproportion.

overriding

1. the position of fracture fragments in which they overlap one another.
2. anomalous positioning of major blood vessels, e.g. aorta or pulmonary arteries.
3. a law or order which overrides, or takes precedence over, a law or order of a court or legislature of lower standing.

overriding aorta
a congenital anomaly occurring in tetralogy of Fallot, in which the aorta is displaced to the right so that it appears to arise from both ventricles and straddles the ventricular septal defect.
overriding pulmonary artery
a congenital cardiac defect in which the pulmonary artery straddles a defective interventricular septum and the aorta originates in the right ventricle.