Astronomy
As`tron´o`my
| n. | 1. | Astrology. | |||
| 2. | The science which treats of the celestial bodies, of their magnitudes, motions, distances, periods of revolution, eclipses, constitution, physical condition, and of the causes of their various phenomena. | ||||
| 3. | A treatise on, or text-book of, the science.
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| Noun | 1. |  astronomy - the branch of physics that studies celestial bodies and the universe as a wholeSynonyms: uranology |