Alphanumeric

adj. constituting a character in an alphanumeric system; consisting of letters and numbers

Alphanumeric is a collective term used to identify letters of the Latin alphabet and Arabic digits. There are either 36 (single case) or 62 (case-sensitive) alphanumeric characters. The alphanumeric character set consists of the numbers 0 to 9 and letters A to Z.
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Adjective
1. of or pertaining to alphanumeric characters
(synonym) alphanumerical, alphameric, alphamerical
(pertainym) alphanumerics

1. Pertaining to a character set that contains letters, digits, and sometimes other characters, such as punctuation marks. (188 ) 2. Pertaining to a set of unique bit patterns that are used to represent letters of an alphabet, decimal digits, punctuation marks, and other special signs and symbols used in grammar, business, and science, such as those displayed on conventional typewriter keyboards.

<character> A decimal digit or a letter (upper or lower case). Typically, "letters" means only English letters (ASCII A-Z plus a-z) but it may also include non-English letters in the Roman alphabet, e.g., e-acute, c-cedilla, the thorn letter, and so on. Perversely, it may also include the underscore character in some contexts.
(1997-09-11)