alphanumeric

adjective
al·pha·nu·mer·ic | \-nu̇-ˈmer-ik, -nyu̇-\
variants: or less commonly alphanumerical \-i-kəl \

Definition of alphanumeric 

1 : consisting of both letters and numbers and often other symbols (such as punctuation marks and mathematical symbols) an alphanumeric code also : being a character in an alphanumeric system

2 : capable of using or displaying alphanumeric characters

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Other Words from alphanumeric

alphanumerically \-i-k(ə-)lē \ adverb
alphanumerics \-iks \ plural noun

Did You Know?

Alphanumeric passwords are much harder for a hacker to crack than plain alphabetic passwords, since the number of possible combinations is so much greater. License plates usually contain both letters and numbers, since, for a big state or country, the plate wouldn't be large enough to fit enough numbers for everyone. In computing, the standard alphanumeric codes, such as ASCII, may contain not only ordinary letters and numerals but also punctuation marks and math symbols.

Examples of alphanumeric in a Sentence

Recent Examples on the Web

For example, the ASCII encoding scheme uses a seven-bit string to represent alphanumeric characters. Timothy B. Lee, Ars Technica, "Inventor says Google is patenting work he put in the public domain," 10 June 2018 The first is a decentralized database that maps people’s phone numbers to public encryption keys, alphanumeric strings required for transacting in cryptocurrency. Robert Hackett, Fortune, "Ex-GoDaddy Execs Raise $6.5 Million for Cheap, Android Phone-Friendly Blockchain," 22 June 2018 Unionized health care coders, who assign alphanumeric codes to medical procedures and services for billing purposes, earn about $30 per hour to start, according to the union. Taryn Luna, sacbee, "Want to break into the health care field? Jerry Brown has a way | The Sacramento Bee," 27 Apr. 2018 One by one, White's dummy files are encrypted, rendering them into inaccessible, alphanumeric gobbledygook. Robert Hackett, Fortune, "Data Sheet—Saturday, July 8, 2017," 8 July 2017 One by one, White's dummy files are encrypted, rendering them into inaccessible, alphanumeric gobbledygook. Robert Hackett, Fortune, "Data Sheet—Saturday, July 8, 2017," 8 July 2017 One by one, White's dummy files are encrypted, rendering them into inaccessible, alphanumeric gobbledygook. Robert Hackett, Fortune, "Data Sheet—Saturday, July 8, 2017," 8 July 2017 A hash function like SHA-1 is used to calculate an alphanumeric string that serves as the cryptographic representation of a file or a piece of data. Lucian Constantin, PCWorld, "Microsoft finally bans SHA-1 certificates in Internet Explorer and Edge," 10 May 2017 One by one, White's dummy files are encrypted, rendering them into inaccessible, alphanumeric gobbledygook. Robert Hackett, Fortune, "Watch That Globe-Circling, Business-Crushing Malware Wreck Computers," 30 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'alphanumeric.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of alphanumeric

1950, in the meaning defined at sense 1

History and Etymology for alphanumeric

alphabetic + numeric, numerical

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Time Traveler for alphanumeric

The first known use of alphanumeric was in 1950

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More Definitions for alphanumeric

alphanumeric

adjective

English Language Learners Definition of alphanumeric

: having or using letters and numbers

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