D defs.my
Entry 1 sense Webster, 1913

Accordion

/ək-ôr'-dē-ən/ · Ac·cor·di·on · IPA /əˈkɔɹ.di.ən/
01 n. A small, portable, keyed wind instrument, whose tones are generated by play of the wind upon free metallic reeds.
  1. 1.
    A small, portable, keyed wind instrument, whose tones are generated by play of the wind upon free metallic reeds.(Mus.)