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
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.
Variants of alphanumeric
Origin and Etymology of alphanumeric
alphabetic + numeric, numerical
First Known Use: 1950
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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