Cal·li·o·pe n.
1. Class. Myth. The Muse that presides over eloquence and heroic poetry; mother of Orpheus, and chief of the nine Muses.
2. Astron. One of the asteroids. See Solar.
3. A musical instrument consisting of a series of steam whistles, toned to the notes of the scale, and played by keys arranged like those of an organ. It is sometimes attached to steamboat boilers.
4. Zool. A beautiful species of humming bird (Stellula Calliope) of California and adjacent regions.
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