coccyx
/ˈkɒksɪks/noun
(pl. coccyges /kɒkˈsaɪdʒiːz/ 或coccyxes)
- a small triangular bone at the base of the spinal column in humans and some apes, formed of fused vestigial vertebrae（人和某些猿的）尾骨。
派生词
coccygeal
/kɒkˈsɪdʒɪəl/ adjective词源
late 16th cent.: via Latin from Greek kokkux 'cuckoo' （because the shape of the human bone resembles the cuckoo's bill）.