jǐ​zhuī

backbone

脊椎 jǐ​zhuī
backbone noun
the entire spinal column or spine as a structural whole

Maintaining poor posture for a long time can cause significant damage to the spine.

vertebra noun
any of the individual bones that make up the spinal column

The doctor examined his damaged vertebra.

Frequency

Movie subtitles
3.99 per million appears in 2% of films
Written text
2.16 per million

Sources

Definitions
CC-CEDICT