rachischisis partialis
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rachischisis — 1. Embryologic failure of fusion of vertebral arches and neural tube with consequent exposure of neural tissue at the surface; spina bifida cystica with myelocele or myeloschisis … Medical dictionary
merorachischisis, merorrhachischisis — Fissure of a portion of the spinal cord. SYN: rachischisis partialis. [mero + G. rhachis, spine, + schisis, fissure] … Medical dictionary
merorachischisis — mero·ra·chis·chi·sis (me″ro rə kisґkĭ sis) [mero 1 + rachi + schisis] fissure of a part of the vertebral column; called also mesorachischisis and rachischisis partialis. Cf. spina bifida … Medical dictionary
