alphanumeric

UK: /ˌælfənjuːˈmɛrɪk/

US: /ˌælfənuˈmɛrɪk, -nju-/

US: (al′fə no̅o̅ mer′ik, -nyo̅o̅-)

WordReference Random House Learner's Dictionary of American English © 2025

al•pha•nu•mer•ic /ˌælfənuˈmɛrɪk, -nyu-/  also al′pha•nu•mer′i•cal, adj. 

1. Computing using letters, numbers, and often special characters or symbols:
   an alphanumeric code.

al•pha•nu•mer•i•cal•ly, adv. 

WordReference Random House Unabridged Dictionary of American English © 2025

al•pha•nu•mer•ic  (al′fə no̅o̅ mer′ik, -nyo̅o̅-), adj. [Computers.]

(of a set of characters) including letters, numbers, and, often, special characters, as punctuation marks:
alphanumeric code.
Also, al•pha•mer•ic  (al′fə mer′ik), al′pha•nu•mer′i•cal, al′pha•mer′i•cal. 
• alpha(bet) + numeric(al) 1950–55
al′pha•nu•mer′i•cal•ly, al′pha•mer′i•cal•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

alphanumeric / ˌælfənjuːˈmɛrɪk/, alphanumerical / ˌælfənjuːˈmɛrɪkəl/, alphameric / ˌælfəˈmɛrɪk/, alphamerical / ˌælfəˈmɛrɪkəl/ adjective

1. (of a character set, code, or file of data) consisting of alphabetical and numerical symbols