Full name: nibble
Plural form: nibbles
Alternate spelling: nybbles
Category type: computer data storage
Scale factor: 0.5
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A nibble (often, nybble) is the computing term for a four-bit aggregation, or half an octet (an octet being an 8-bit byte). As a nibble contains 4 bits, there are sixteen possible values, so a nibble corresponds to a single hexadecimal digit (thus, it is often referred to as a "hex digit" or "hexit").