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Webster 1913 Edition
Harmonium
Har-mo′ni-um
(här-mō′nĭ-ŭm)
, Noun.
[NL. See
Harmony
. ] 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.