invisible character,non-print character,non-printable character,non-printing character,non-printing symbol,whitespace character /IT-TECH/
[DE] nicht abdruckbares Zeichen; unsichtbares Zeichen
[EN] invisible character; non-print character; non-printable character; non-printing character; non-printing symbol; whitespace character
[FR] caractère blanc; caractère invisible; caractère non-imprimant; caractère transparent