1.nounAny 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.
"All I know how to play on my xylophone is "Mary Had a Little Lamb". Would you like to hear it?"
2.verbTo play a xylophone or to play something else as though it was a xylophone.
3.verbTo move above a ridged surface so as to hit every ridge, in a manner similar to playing quickly and sequentially on a xylophone.