D defs.my
Entry 2 senses Webster, 1913

Xylophone

/zīl'-əf-ōnˌ/ · Xy·lo·phone · IPA /ˈzaɪləˌfoʊn/
01 n. Originally, an instrument common among the Russians, Poles, and Tartars, consisting of a series of strips of wood or glass graduated in len…
  1. 1.
    Originally, an instrument common among the Russians, Poles, and Tartars, consisting of a series of strips of wood or glass graduated in length to the musical scale, resting on belts of straw, and struck with two small hammers; now any similar musical instrument composed of a series of bars of graduated length. Called in Germany strohfiedel, or straw fiddle.(Mus.) Also: strohfiedel, straw fiddle
  2. 2.
    An instrument to determine the vibrative properties of different kinds of wood.