Source : Webster's Revised Unabridged Dictionary (1913)

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.