| 单词 | sacrum |
| 释义 | sacrum /sāˈkrəm or sakˈrəm/ (anatomy)noun (pl saˈcra)A triangular bone composed of five fused vertebrae (sacral vertebrae) wedged between the two innominate bones, so as to form the keystone of the pelvic arch in humans ORIGIN: L (os) sacrum holy (bone), so called for unknown reason saˈcral adjective sacralgia /-ralˈji-ə/ noun Pain in the sacrum or region of the sacrum sacralizaˈtion or sacralisaˈtion noun Abnormal fusion of the sacrum with the fifth lumbar vertebra |
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