Adjective form related to alphanumeric; consisting of or using both alphabetic and numeric characters.
Alphanumeric + -al (the suffix that extends adjectives, often for formal or technical contexts). Both alphanumeric and alphanumerical exist, though the -al form is less common.
In technical writing, you'll see both 'alphanumeric' and 'alphanumerical,' but the shorter form wins in practice because technologists prefer efficiency—a pattern true across all jargon where simpler versions gradually eliminate longer synonyms.
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