脊椎骨 jǐzhuīgǔ
jǐzhuīgǔ
noun
vertebra
Domain: Modern Chinese 现代汉语
Notes: (CC-CEDICT '脊椎骨'; Guoyu '脊椎骨'; Mathews 1931 '脊椎骨', p. 64; Wikipedia '脊椎')