noun an instrument for observing or showing the positions of the stars. it is now disused.
2. astrolabe ·noun a stereographic projection of the sphere on the plane of a great circle, as the equator, or a meridian; a planisphere.
noun an instrument for observing or showing the positions of the stars. it is now disused.
2. astrolabe ·noun a stereographic projection of the sphere on the plane of a great circle, as the equator, or a meridian; a planisphere.
Webster English vocab. Английский словарь Webster. 2012