| 词汇 | polio |
| 词根词缀 | 词源： 1931, abbreviation of poliomyelitis, coined 1878 from Gk. polios "gray" + myelos "marrow" + L. -itis "inflammation," so called because the gray matter in the spinal cord is inflamed, which causes paralysis. The earlier name was infantile paralysis (1843). |
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