astrolabe / वेधयंत्र; नक्षत्र-यंत्र; उच्चता मापने के लिए पूर्वकाल में प्रयुक्त युत्र-विशेष;
Synonym alidad;
English Dictionary:
1. Astrolabe [n.]
- An instrument for observing or showing the positions of
the stars. It is now disused. - A stereographic projection of the sphere on the plane of
a great circle, as the equator, or a meridian; a planisphere.