noun
declarative sentence
Computing term for a statement that declares or defines something, such as a variable or function, rather than performing an action.
このプログラミング言語では、変数宣言は宣言完結文として扱われる。
In this programming language, variable declarations are treated as declarative sentences.
Compound of 宣言 (declaration) + 完結 (completion) + 文 (sentence). The exact derivation is uncertain; it is a technical term likely coined in computing contexts.