外げ科か的てき手しゅ術じゅつ

• 手しゅ術じゅつ

  手術 is the general term for any operation or surgery, while 外科的手術 specifically emphasizes the surgical (as opposed to medical) nature of the procedure.

• 外げ科か

  外科 means 'surgery' as a medical department or field, whereas 外科的手術 refers to the actual surgical operation itself.

Compound of 外科的 (surgical) + 手術 (operation). The exact historical derivation is uncertain, but the term follows standard medical terminology patterns.