メタキャラクタ

noun

metacharacter

In computing, a character that has a special meaning in a pattern or command, such as wildcards or escape characters.

• 正せい規き表ひょう現げんでは、ドットは任にん意いの1文も字じにマッチするメタキャラクタです。

  In regular expressions, the dot is a metacharacter that matches any single character.