noun
Computing term for a category of characters, such as letters, digits, or punctuation, used in regular expressions and text processing.
正規表現では、文字種別を使って数字だけを検索できます。
In regular expressions, you can use character classes to search only for digits.
Compound of 文字 (moji, 'character') and 種別 (shubetsu, 'classification').