noun
dermatome
Medical term for an area of skin innervated by a single spinal nerve root.
帯状疱疹は特定の皮膚分節に沿って発疹が現れる。
Shingles causes a rash along a specific dermatome.
Compound of 皮膚 (skin) and 分節 (segment), likely a calque from the English medical term 'dermatome'.