| rachidial | <anatomy> Pertaining to a spine or to the vertebral column. Origin: L. Spinalis (18 Nov 1997) |
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| rachidian | <anatomy> Of or pertaining to the rachis; spinal; vertebral. Same as Rhachidian. See: Rachis. Source: Websters Dictionary (01 Mar 1998) |
| rachigraph | A graph for recording the curves of the vertebrae. Origin: rachi-+ G. Grapho, to write (05 Mar 2000) |
| rachilla | The main stem of a grass spikelet, above the glumes. (09 Oct 1997) |
| rachilysis | Forcible correction of lateral curvature of the spine by lateral pressure against the convexity of the curve. Origin: rachi-+ G. Lysis, a loosening (05 Mar 2000) |
| rachiocampsis | Curvature of the spine. See: kyphosis, lordosis, scoliosis. Origin: rachio-+ G. Kampsis, a bending (05 Mar 2000) |
| rachiocentesis | Synonym: lumbar puncture. Origin: rachio-+ G. Kentesis, puncture (05 Mar 2000) |
| rachiochysis | A subarachnoid effusion of fluid in the spinal canal. Origin: rachio-+ G. Chysis, a pouring out (05 Mar 2000) |
| rachiodont | <zoology> Same as Rhachiodont. Source: Websters Dictionary (01 Mar 1998) |
| rachiometer | An instrument for measuring the curvature of the spine, natural or pathologic, of the spinal column. Origin: rachio-+ G. Metron, measure (05 Mar 2000) |
| rachiopagus | Conjoined twins united back to back as a result of fusion of their spinal columns. See: conjoined twins. Synonym: rachipagus. Origin: rachio-+ G. Pagos, something fixed (05 Mar 2000) |
| rachiopathy | Synonym: spondylopathy. Origin: rachio-+ G. Pathos, suffering (05 Mar 2000) |
| rachioplegia | Synonym: spinal paralysis. Origin: rachio-+ G. Plege, stroke (05 Mar 2000) |
| rachioscoliosis | <anatomy> A congenital lateral curvature of the spine. (27 Sep 1997) |
| rachiotome | A specially devised instrument for dividing the laminae of the vertebrae. Synonym: rachitome. Origin: rachio-+ G. Tome, incision (05 Mar 2000) |