n. 口琴, 玻璃钟琴

[医] 氢气发音管

[ noun ]
a small rectangular free-reed instrument having a row of free reeds set back in air holes and played by blowing into the desired hole
<noun.artifact>

Harmonica \Har*mon"i*ca\ (-[i^]*k[.a]), n. [Fem. fr. L.
harmonicus harmonic. See {Harmonic}, n. ]
1. A musical instrument, consisting of a series of
hemispherical glasses which, by touching the edges with
the dampened finger, give forth the tones; it is now
called the {glass harmonica}, to distinguish it from the
common harmonica, formerly called the harmonicon.

2. A toy instrument of strips of glass or metal hung on two
tapes, and struck with hammers.

3. A small wind musical instrument shaped like a flat bar
with holes along the thin edges, held in the hand and
producing notes from multiple vibrating reeds arranged
inside along its length; it was formerly called the
{harmonicon}. See {harmonicon}.
[PJC]

Harmonicon \Har*mon"i*con\ (-[i^]*k[o^]n), n.
A small, flat, wind instrument of music, in which the notes
are produced by the vibration of free metallic reeds; it is
now called the {harmonica}.
[1913 Webster +PJC]