1. plural of harmonium; keyboard musical instruments that produce sound by forcing air through metal reeds

Examples

• The church had two old harmoniums in storage.
• Indian classical musicians often use harmoniums as accompaniment.
• The antique shop displayed several vintage harmoniums.
• She learned to play hymns on one of the harmoniums.
• The harmoniums needed tuning after years of disuse.
• Both harmoniums were donated to the music school.