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Webster 1913 Edition

Noun.

[NL., fr. Gr. [GREEK] musical. See

, and cf.

(Mus.)

A kind of small reed organ; – a portable form of the seraphine.

A music hall.

melodeon ‎(plural melodeons)

A melodeon organ (sense 1).

A melodeon accordion (sense 2).

From French mélodium, with change of ending.

melodeon ‎(plural melodeons)

(historical, music) A type of reed organ with a single keyboard.
(music) An accordion where the melody-side keyboard is limited to the notes of diatonic scales in a small number of keys.
- 1932, Lewis Grassic Gibbon, Sunset Song, Polygon 2006 (A Scots Quair), p. 147:
  But Chae said it didn't matter, he'd bring his melodeon and Long Rob his fiddle; and faith! if that didn't content the folk they were looking for a church parade of the Gordons, not a wedding.
- 2009, January 13, “Derek Schofield”, in Francis Shergold:
  His brother, Roy, joined him as a dancer - their two-man jigs were much admired - and his nephew, Jamie Wheeler, has become the side's principal musician, on melodeon and fiddle.