脊髓

Traditional form:

脊髓

Pinyin (reading):

jǐsuǐ

Definitions:

• spinal cord
• medulla spinalis

Characters:

• 脊 - spine, backbone; ridge
• 髓 - substance, essence; bone marrow

Traditional characters:

• 脊 - spine, backbone; ridge
• 髓 - substance, essence; bone marrow