Definitions
a musical instrument consisting of a series of steam whistles played from a keyboard
Word origin
From Ancient Greek Καλλιόπη (Kalliópē, “Calliope, the muse of poetry”), from καλός (kalós, “beautiful”) + ὄψ (óps, “voice”).
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“Whistling fair organ”8 letters
02“Steam-whistle keyboard”8 letters
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