D defs.my
Entry 1 sense Webster, 1913

Harmoniphon

/(här*mŏn"ĭ*fŏn)/ · Har·mon·i·phon · IPA
01 n. An obsolete wind instrument with a keyboard, in which the sound, which resembled the oboe, was produced by the vibration of thin metallic p…
  1. 1.
    An obsolete wind instrument with a keyboard, in which the sound, which resembled the oboe, was produced by the vibration of thin metallic plates, acted upon by blowing through a tube.(Mus.)