hexadecimal

adjective

1. of or pertaining to a number system having 16 as its base

Similar word(s): hex

noun

1. (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