alphanumeric
(adjective)
ˌæl·fə·nuːˈmer·ɪk
Definitions
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Consisting of both letters and numbers.
A harmonious duet of digits and letters, dancing together on the page, forming a symphony of meaning and complexity.Example: The password must be alphanumeric to be accepted.
Origin
1950s: from alpha 'alphabetic' + numeric.
Synonyms
alphanumerical, letter-number