Definition from Wiktionary, the free dictionary
See also hexadécimal
- (arithmetic, computing) A number system with base 16, using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F, useful in computing as a hexadecimal digit can represent four bits, half a standard byte. Informal short form used in computing: hex
Derived terms 
number system with base 16
hexadecimal (not comparable)
- Of a number, expressed in hexadecimal.
- (arithmetic, computing): base-16
expressed in hexadecimal
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