Definition of hexadecimal in English:

hexadecimal

Syllabification: hex·a·dec·i·mal
Pronunciation: /ˌheksəˈdes(ə)məl
 
/

adjective

Computing
Relating to or using a system of numerical notation that has 16 rather than 10 as its base.
More example sentences
  • Another common way of writing bit-strings is to use the hexadecimal notation.
  • All you have to do is click on the color you want and the hexadecimal code is displayed for you.
  • A setup wizard to explain the steps and end the need for obscurities such as hexadecimal codes would go a long way toward making a great technology accessible.

Derivatives

hexadecimally

adverb
More example sentences
  • The yellow color is expressed hexadecimally as 0xff, 0xff and 0x7f.
  • The number is displayed hexadecimally after the main program number.
  • In this case, the initial part of the address is trimmed off and is printed hexadecimally, e.g., 0x80004000 prints as 4000.

Definition of hexadecimal in:

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