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
alphanumericallyplay \-i-k(ə-)lē\ adverb
alphanumericsplay \-iks\ plural noun
Recent Examples of alphanumeric from the Web
One by one, White's dummy files are encrypted, rendering them into inaccessible, alphanumeric gobbledygook.
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.
Newcomers often don't know the difference between bits and bytes – there are 8 bits in a byte, which happens to be enough to represent a single ASCII character, including standard Latin alphanumeric characters, punctuation, and most accents.
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.
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.
Origin and Etymology of alphanumeric
alphabetic + numeric, numerical
First Known Use: 1950See Words from the same year
ALPHANUMERIC Defined for English Language Learners
Definition of alphanumeric for English Language Learners
: having or using letters and numbers
Seen and Heard
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