Relating to or expressed in hexadecimal notation, a number system using base 16 (0-9 and A-F).
Blend of 'hexadecimal' and 'heck,' or possibly a playful variant of 'hexadecimal' used informally in computing communities.
Computer programmers sometimes use quirky terms like 'heckimal' informally because hexadecimal is so fundamental to their work—it's tech slang for something they use constantly!
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