noun. An organlike keyboard instrument that produces tones with free metal reeds actuated by air forced from a bellows.

noun. One of the forms of the reed-organ (which see).

noun. A musical instrument, resembling a small organ and especially designed for church music, in which the tones are produced by forcing air by means of a bellows so as to cause the vibration of free metallic reeds. It is now made with one or two keyboards, and has pedals and stops.

noun. A small keyboard instrument consisting of a series of reed pipes which sound when air is allowed to pass through them by means of a valve that opens when a key is depressed.

noun. a free-reed instrument in which air is forced through the reeds by bellows

"In later life when he had attained to wealth and prosperity the violin and the harmonium were a constant source of solace during long winter evenings in Greenwich and Peckham."

reed organ  

free-reed instrument  

ammonium  pandemonium  plutonium  polonium  zirconium  

accordion  attacks  basset  bell-ringing  bugle horn  

Hammond organ  baroque organ  calliope  calliophone  choralcelo