单词	synsacrum
释义	synsacrum noun syn·​sacrum "+ : a solidly fused series of vertebrae in the pelvic region in birds, dinosaurs, and pterosaurs comprising usually the last rib-bearing or thoracic vertebra, the two sacral vertebrae, and a varying number of caudal vertebrae compare sacrum Word History Etymology New Latin, from syn- + sacrum
随便看	apianer apianest apianner apiannest apiarian apiarians apiaries apiarist apiarists apiary apic- apicad apical apical cap apical cell apical dental ligament apical dominance apical meristem apical plate apically apicals apices apici- Apician apicifixed

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