脊椎

Traditional form:

脊椎

Pinyin (reading):

jǐzhuī

Definitions:

• vertebra
• backbone

Characters:

• 脊 - spine, backbone; ridge
• 椎 - spine, vertebra; hammer, mallet

Traditional characters:

• 脊 - spine, backbone; ridge
• 椎 - spine, vertebra; hammer, mallet