Source : WordNet®

daisywheel printer
     n : a printer that uses a daisy print wheel

Source : Free On-Line Dictionary of Computing

daisywheel printer
     
         A kind of {impact printer} where the characters are
        arranged on the ends of the spokes of a wheel (resembling the
        petals on a daisy).
     
        The wheel (usually made of plastic) is rotated to select the
        character to print and then an electrically operated hammer
        mechanism bends the selected spoke forward slightly,
        sandwiching an ink ribbon between the character and the paper,
        as in a typewriter.
     
        One advantage of this arrangement over that of a typewriter is
        that different wheels may be inserted to produce different
        {typefaces}.
     
        (1998-04-28)