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An asterisk (*) is a typographical symbol or glyph. It is so called because it resembles a star, (Latin astra). Typographers call it a splat (This may derive from the "squashed-bug" appearance of the asterisk on many early line printers). Computer scientists often pronounce it as star (as, for example, in the A* algorithm).

Uses of the asterisk include:

In computer programming, the asterisk corresponds to Unicode and ASCII character 42, or 0x002A.
Not to be confused with Asterix, the character of children's comic books.