What is the meaning of Xylophone?

Any musical instrument (percussion idiophone) made of wooden slats graduated so as to make the sounds of the scale when struck with a small drumstick-like mallet; the standard Western concert xylophone or one of its derivatives.

To play a xylophone or to play something else as though it was a xylophone.

To move above a ridged surface or series of surfaces so as to hit every ridge, in a manner similar to playing quickly and sequentially on a xylophone.