From Longman Dictionary of Contemporary Englishhexadecimalhex‧a‧dec‧i‧mal /ˌheksəˈdesəməl◂/ (also hex) adjective technical hexadecimal numbers are based on the number 16 and are mainly used on computers
Examples from the Corpus
hexadecimal• For example, the following program looks at each character in a string and checks that it is a valid hexadecimal numeric character.Origin hexadecimal (1900-2000) hexa- “six” (from Greek, from hex “six”) + decimal 