[a. F. cosmolabe: cf. COSMO- and ASTROLABE.] An ancient instrument resembling the astrolabe.

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1574.  Eden, Taisnier’s Navig., Ded. (in Arb. p. xlvii/1). Of this instrument reade the Cosmolabe of Besson [L’Usage et Pratique du Cosmolabe 1567].

2

1727–51.  Chambers, Cycl., Cosmolabe, an antient mathematical instrument, serving to measure distances, both in the heavens, and on earth.

3