Definition of Psallmelodicon in English:

Psallmelodicon

(also Psallmelodikon)

noun

rare
  • A woodwind instrument capable of playing several tones at once, designed to imitate the sounds of orchestral instruments.

Origin

Late 19th century; earliest use found in John Stainer (1840–1901), musicologist and composer. From German †Psallmelodicon from ancient Greek ψάλλειν to twang, play + Hellenistic Greek μελῳδικόν.