(dated, music) The harmonica. / (historical) An acoustic apparatus that produces a musical note when a long dry tube, open at both ends, is held over a jet of burning hydrogen.

someone who plays a harmonica

plural of glass harmonica

Someone who plays a glass harmonica.

plural of glass harmonicist

plural of harmonicaist

(dated) Synonym of harmonicist

(music) A kind of upright piano whose strings are set in vibration not by the blow of the hammer but by indirectly transmitted friction.

plural of harmonichord

(music) A musical instrument composed of a series of spinning glass bowls, played with the fingers, invented by Benjamin Franklin. / (more loosely) The glass harp.