Astronomy | Define Astronomy at Dictionary.com

Contemporary Examples

Occult literally means hidden from view, which is why we use it both in astronomy and to refer to secret knowledge.

After To Die For, Affleck moved to New York and attended Columbia University for two years, majoring in physics and astronomy.

His specialty was astronomy, a subject in which he had made several major discoveries.

Cosmic ray observations are more challenging than many other forms of astronomy.

Muslims made many discoveries in mathematics, chemistry, physics, medicine, astronomy and psychology.

British Dictionary definitions for astronomy Expand

the scientific study of the individual celestial bodies (excluding the earth) and of the universe as a whole. Its various branches include astrometry, astrodynamics, cosmology, and astrophysics

Word Origin

C13: from Old French astronomie, from Latin astronomia, from Greek; see astro-, -nomy

Word Origin and History for astronomy Expand

c.1200, from Old French astrenomie, from Latin astronomia, from Greek astronomia, literally "star arrangement," from astron "star" (see astro-) + nomos "arranging, regulating," related to nemein "to deal out" (see numismatics). Used earlier than astrology and originally including it.

astronomy in Science Expand

astronomy in Culture Expand

The science that deals with the universe beyond the Earth. It describes the nature, position, and motion of the stars, planets, and other objects in the skies, and their relation to the Earth.

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Astronomy | Define Astronomy at Dictionary.com