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from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Consisting of both letters and numbers.
  • adj. Consisting of or using letters, numbers, punctuation marks, and mathematical and other conventional symbols: an alphanumeric code.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Consisting of letters and numbers, especially the characters A to Z (lowercase and uppercase) and 0 to 9
  • adj. Consisting of these characters plus punctuation and other special characters
  • n. An alphanumeric character.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. of or pertaining to alphanumeric characters


alpha(betic) + numeric(al).
(American Heritage® Dictionary of the English Language, Fourth Edition)
alpha(betic) + numeric (Wiktionary)


  • "Unearthed" allegedly focuses on a young girl who is pronounced dead, and when she's taken off of life support, she "wakes up screaming in alphanumeric code."

    ‘Fringe’ Goes Back To Season One For ‘Unearthed,’ A Never-Before-Seen Episode » MTV Movies Blog

  • The Internet is going to do a lot more to change performance-based poetry, include the necessarily performance - or video-based poets of American Sign Language, than to change the kind of poems I write and (mostly) read, shortish works in alphanumeric script in Western languages, created for silent reading on the page.

    no telling : Stephen Burt : Harriet the Blog : The Poetry Foundation

  • The unique identifier, called a alphanumeric characters, such as, for example, uuid: 4CD7E4BC-648B-426D-9936-443EAAC8AI.

    SearchSOA: News on SOA, EAI, Web services

  • The keys on a computer keyboard can be classified as alphanumeric keys (letters and numbers), punctuation keys (comma, period, semicolon, etc.), and special keys (function keys, control keys, arrow keys, Caps Lock key, etc.).


  • In fact, keys such as alphanumeric keys are not supposed to be used as modifier keys.

    AutoHotkey Community

  • "We have now identified the computers using the old Microsoft and upgraded them, which means that even in the unlikely event of a successful attack, it would take months to decrypt the information; strong passwords (such as alphanumeric combinations) could take years," he said.


  • Some of the solutions that work people such as alphanumeric passwords doesn't work for people like me who have to deal with strict password policies.

    Discussions: Message List - root

  • To those uninitiated to alphanumeric symbols there is no information in a newspaper.

    Attached to Strings

  • Total alphanumeric discrimination in the guise of orderly process.

    Matthew Yglesias » Alphabetism

  • Assuming that there are 22 usable special characters (I think there are more, but I was conservative in my estimate) on top of the 62 alphanumeric characters, you get 84 different characters and with an 8-character password that gives more than 2,000 trillion different combinations.

    Passwords and Security « Inane Bits


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