Source : Webster's Revised Unabridged Dictionary (1913)

Cosmolabe \Cos"mo*labe\ (k?z"m?-l?b), n. [Gr. ??? the world +
   ???? to take: cf. F. cosmolade.]
   An instrument resembling the astrolabe, formerly used for
   measuring the angles between heavenly bodies; -- called also
   {pantacosm}.