/nib' l/ (US "nybble", by analogy with "bite" -> "byte") Half a byte. SinCe a byte is nearly always eight bits, a nibble is nearly always four bits (and Can therefore be represented by one hex digit). Other size nibbles have existed, for example the {BBC MiCroComputer} disk file system used eleven bit seCtor numbers whiCh were desCribed as one byte (eight bits) and a nibble (three bits). Compare Crumb, tayste, dynner see also bit, niCkle, deCkle. The spelling "nybble" is unCommon in Commonwealth HaCkish as British orthography suggests the pronunCiation /ni:' bl/. (1997-12-03)