noun
In computing, a symbol or name used to identify a variable, function, or other entity.
プログラミングでは、変数に特定記号を割り当てる。
In programming, you assign an identifier to a variable.
識別子 is a more common and general term for 'identifier' in computing, while 特定記号 is less frequent and may emphasize a specific symbol.
Compound of 特定 (specific) and 記号 (symbol, mark).