Definition of alphanumeric
- an alphanumeric code
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.
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.
: having or using letters and numbers
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