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hexadecimal

hex·a·dec·i·mal [ hèksə déssim'l ]


adjective 
Definition:
 
based on number 16: using units of 16, in which the letters A to F are used as digits as well as the digits 0 to 9, as a basis for counting and ordering. Hexadecimal notation is used especially to represent binary code in computers.



noun  (plural hex·a·dec·i·mals)
Definition:
 
1. number with base 16: a number used to count or order in units of 16

2. notation for numbers with base 16: the notation used to represent numbers with a base 16

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