alphanumeric
/ˌæl.fə.n(j)uːˈmɛ.ɹɪk/noun
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An alphanumeric character.
Synonyms:
alnum
adjective
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Consisting of, or limited to, letters and/or numbers, especially the characters A to Z (lowercase and uppercase) and 0 to 9.
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Consisting of these characters plus punctuation and other special characters.