Seraphine \Ser"a*phine\, n. [From {Seraph}.] (Mus.)
A wind instrument whose sounding parts are reeds, consisting
of a thin tongue of brass playing freely through a slot in a
plate. It has a case, like a piano, and is played by means of
a similar keybord, the bellows being worked by the foot. The
melodeon is a portable variety of this instrument.
[1913 Webster]