1. a keyboard instrument that produces sound by forcing air through metal reeds

Examples

• The old church had a beautiful harmonium instead of a pipe organ.
• She learned to play hymns on her grandmother’s harmonium.
• The harmonium’s bellows needed to be pumped by foot to produce sound.
• Indian classical musicians often use a harmonium as accompaniment.
• The antique harmonium was carefully restored by a specialist.
• He practiced scales on the harmonium every morning.