Bible Dictionaries
Astrolabe

Webster's Dictionary

(1):

(n.) An instrument for observing or showing the positions of the stars. It is now disused.

(2):

(n.) A stereographic projection of the sphere on the plane of a great circle, as the equator, or a meridian; a planisphere.

Bibliography Information
Webster, Noah. Entry for 'Astrolabe'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​a/astrolabe.html. 1828.