- (n.) A stereographic projection of the sphere on the plane of a great circle, as the equator or a meridian; a planisphere.
- (n.) An instrument for observing or showing the positions of the stars. It is now disused.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). astrolabe. Retrieved September 23, 2026, from http://smartdefine.org/astrolabe/definitions/1976672 |
| Chicago | Webster's. 2011. "astrolabe" http://smartdefine.org/astrolabe/definitions/1976672 (accessed September 23, 2026). |
| Harvard | Webster's 2011, astrolabe, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/astrolabe/definitions/1976672>. |
| MLA | Webster's. "astrolabe" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/astrolabe/definitions/1976672> |