(1):
(n.) The Muse that presides over eloquence and heroic poetry; mother of Orpheus, and chief of the nine Muses.
(2):
(n.) A beautiful species of humming bird (Stellula Calliope) of California and adjacent regions.
(3):
(n.) 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):
(n.) One of the asteroids. See Solar.