American Heritage Dictionary
Century Dictionary
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GNU Webster's 1913
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Elsewhere on the web
At the same time, paving the way for Galileo, incredibly complex Renaissance-era astrological instruments such as armillary spheres and planetary clocks, manufactured by the foremost goldsmiths of Europe, show the connection between the applied arts, mathematics and technology.— California Literary Review
The sundials, astrolabes, armillary and celestial spheres and other devices on display are extraordinarily beautiful objects.— New Scientist - Space
During the era a wide range of astronomical instruments were also invented, including the astrolabes (an ancient astronomical computer), the armillary sphere (a skeletal celestial sphere with a model of the Earth or the sun in the center), the celestial globe (a globe depicting the stars), and the sun dial.— Asia Times Online
I consider the armillary sphere a clumsy disproportioned bit of apparatus.— Emile
Circles in azimuth, armillary spheres,— Watchers of the Sky

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