noun
figurative constant
A named constant in programming that improves code readability by replacing a literal value with a descriptive identifier.
コードの可読性を高めるために、マジックナンバーの代わりに表意定数を使う。
To improve code readability, use a figurative constant instead of a magic number.
Compound of 表意 (hyōi, 'expressing meaning') and 定数 (teisū, 'constant'). The term is a direct translation of the English 'figurative constant' used in programming contexts.