noun
reserved name use parameter
Computing term for a parameter that uses a reserved name. Very domain-specific; unlikely to appear outside technical documentation.
この関数では、予約名使用引数として「__name__」が使われている。
In this function, '__name__' is used as a reserved name use parameter.
Compound of 予約 (reservation), 名 (name), 使用 (use), and 引数 (parameter). The exact derivation is uncertain; it is a technical term formed from standard computing vocabulary.