ALL meanings of armillary sphere
ar·mil·lar·y sphere
A a - noun armillary sphere a model of the celestial sphere consisting of rings representing the relative positions of the celestial equator, ecliptic, etc, used by early astronomers for determining the positions of stars 3
- noun armillary sphere an ancient astronomical sighting instrument representing the great circles of the horizon, the ecliptic, the meridian, etc. 3
- noun armillary sphere an ancient instrument consisting of an arrangement of rings, all of which are circles of the same sphere, used to show the relative positions of the celestial equator, ecliptic, and other circles on the celestial sphere. 1
- noun armillary sphere An instrument consisting of graduated metal circles used to represent the motions of celestial bodies around the earth. 0