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[al-fuh-noo-mer-ik, -nyoo-] /ˌæl fə nuˈmɛr ɪk, -nyu-/
adjective, Computers.
(of a set of characters) including letters, numbers, and, often, special characters, as punctuation marks:
alphanumeric code.
Also, alphameric
[al-fuh-mer-ik] /ˌæl fəˈmɛr ɪk/ (Show IPA),
alphanumerical, alphamerical.
Origin of alphanumeric
1950-55; alpha(bet) + numeric(al)
Related forms
alphanumerically, alphamerically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for alphanumeric
Historical Examples
British Dictionary definitions for alphanumeric


(of a character set, code, or file of data) consisting of alphabetical and numerical symbols
Derived Forms
alphanumerically, alphamerically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for alphanumeric

1912, contracted from alphabet + numeric (see numerical).

Online Etymology Dictionary, © 2010 Douglas Harper
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alphanumeric in Technology

A decimal digit or a letter (upper or lower case). Typically, "letters" means only English letters (ASCII A-Z plus a-z) but it may also include non-English letters in the Roman alphabet, e.g., e-acute, c-cedilla, the thorn letter, and so on. Perversely, it may also include the underscore character in some contexts.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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Related Abbreviations for alphanumeric


alphabetical and numerical
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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