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/ˌhɛksəˈdɛsɪməl/ · noun
(arithmetic, computing, uncountable) A number system with base sixteen, using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F, most used in computing as a hexadecimal digit can represent four bits, half a standard byte, and thus a single byte can be represented conveniently with two digits..
Use hexadecimal when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Hexadecimal means (arithmetic, computing, uncountable) A number system with base sixteen, using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F, most used in computing as a hexadecimal digit can represent four bits, half a standard byte, and thus a single byte can be represented conveniently with two digits..
Common synonyms include base sixteen, hex, sedecimal, sexadecimal.
The opposite depends on the specific sense.
Use hexadecimal where its definition matches the intended context.
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