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alphanumeric

American

[al-fuh-noo-mer-ik, -nyoo-] / ˌæl fə nuˈmɛr ɪk, -nju- /

Also alphameric

adjective

Computers.

(of a set of characters) including letters, numbers, and, often, special characters, as punctuation marks.

alphanumeric code.

alphanumeric British

/ ˌælfənjuːˈmɛrɪk, ˌælfəˈmɛrɪk /

adjective

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

"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

Other Word Forms

Etymology

Origin of alphanumeric

First recorded in 1950–55; alpha(bet) + numeric(al)

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

alphanumeric

Over time, those markings were replaced with a unique alphanumeric code system, while deliveries came to rely on bicycles, motorbikes and Mumbai's suburban train network.

From BBC ● May 29, 2026

It’s an alphanumeric code that the airline gives you after purchasing your ticket.

From MarketWatch ● Dec. 3, 2025

The alphanumeric code went out on the chats, on the Instagram.

From Slate ● Oct. 27, 2025

Long ignored except by a tiny scientific community, these pathogens with clunky, alphanumeric names—NL63, 229E, and HKU1 are the other three—are now getting their due.

From Science Magazine ● Jan. 11, 2024

He carried an alphanumeric beeper and consulted it often; his plans were subject to constant change.

From "Newjack: Guarding Sing Sing" by Ted Conover

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023