開かい頭とう手しゅ術じゅつ

noun

craniotomy

Surgical opening of the skull, typically to access the brain. A technical term used in medical contexts.

• 脳のう腫しゅ瘍ようの治ち療りょうのために開かい頭とう手しゅ術じゅつが行おこなわれた。

  A craniotomy was performed to treat the brain tumor.