ヌルバイトヌルバイトMeanings1nounnull bytecomputingComputing term for a byte with all bits set to zero, often used as a string terminator in C and related languages.C言げん語ごでは、文も字じ列れつの終しゅう端たんにヌルバイトが置おかれる。In C, a null byte is placed at the end of a string.