har·mon·i·ca 
(här-mŏnĭ-kə)
(här-mŏnĭ-kə)n.
Music
Music
1. A small rectangular instrument consisting of a row of free reeds set back in air holes, played by exhaling or inhaling. Also called mouth harp, mouth organ; also called regionally French harp.
2. A glass harmonica.
3. An instrument consisting of tuned strips of metal or glass fixed to a frame and struck with a hammer.
[Alteration of obsolete armonica, glass harmonica, from Italian, feminine of armonico, harmonious, from Latin harmonicus, harmonic; see HARMONIC.]