hexadecimal

Number representation in base 16. In base 16, the digits 0 to 9 and the letters A to F are used. A represents 10 (base 10), B represents 11 (base 10), and so on. Digit positions represent successive powers of 16.

The numbering system that uses 16 as its base. The marks 0-9 and a-f (or equivalently A-F) represent the digits 0 through 15. In programs written in the Java programming language, hexadecimal numbers must be preceded with 0x. See also octal.

A number system with a base of 16. The digits are 0-9 and A-F, where F equals the decimal value of 15.

A number in base 16, "hex" for short. The digits for 10 through 16 are customarily represented by the letters a through f. Hexadecimal constants in Perl start with 0x. See also "hex" in perlfunc.

Characterized by a selection, choice or condition that has sixteen possible different values or states. Synonym sexadecimal. 2. Pertaining to a fixed-radix numeration system in which the radix is sixteen.