noun
scope of declaration
Computing term referring to the region of a program where a particular declaration (e.g., variable, function) is valid and accessible.
変数の宣言の有効範囲は、そのブロック内に限られる。
The scope of a variable declaration is limited to the block in which it appears.
Compound of 宣言 (declaration) + の (possessive particle) + 有効範囲 (scope, effective range). The term is a direct translation of the English computing concept 'scope of declaration'.