0 a small accordion (= a musical instrument consisting of a folded central part with a small keyboard on the end, played by pushing the two ends towards each other), used especially for playing folk music:
As soon as they came into the house a melodeon started to play and two fiddles took up in perfect tune.
Since childhood, he had been picking up tunes on his father's melodeon.
The Horn Dancers dance around to the music of a melodeon player.
The Lord Jesus was a bearded man in a white robe out of the picture beside the melodeon in Sunday School.
