| SMA | sequential multiple analysis or analyzer; sequential multichannel autoanalyzer; simultaneous multich... |
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| sp | space; species; specific; spine, spinal; spirit |
| SPA | salt-poor albumin; sheep pulmonary adenomatosis; sperm penetration assay; spinal progressive amyotro... |
| sp | an spinal anesthesia |
| Sp | Cd, sp cd spinal cord |
| lumbar segments of spinal cord | The five lumbar segments of the spinal cord which give rise to the five pairs of lumbar spinal nerves and constitute the lumbar part of the spinal cord. Synonym: segmenta medullae spinalis lumbaria. (05 Mar 2000) |
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