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astronomy

 - 6 dictionary results

as⋅tron⋅o⋅my

[uh-stron-uh-mee]
–noun
the science that deals with the material universe beyond the earth's atmosphere.

Origin:
1175–1225; ME astronomie (< AF) < L astronomia < Gk. See astro-, -nomy
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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as·tron·o·my   (ə-strŏn'ə-mē)   
n.   pl. as·tron·o·mies
  1. The scientific study of matter in outer space, especially the positions, dimensions, distribution, motion, composition, energy, and evolution of celestial bodies and phenomena.

  2. A system of knowledge or beliefs about celestial phenomena: the various astronomies of ancient civilizations.


[Middle English astronomie, from Old French, from Latin astronomia, from Greek astronomiā : astro-, astro- + -nomiā, -nomy.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Cultural Dictionary

astronomy

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.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

astronomy 
1205, from O.Fr. astronomie, from L. astronomia, from Gk. astronomia, from astron "star" (from PIE base *ster- "star") + nomos "arranging, regulating," related to nemein "to deal out" (see numismatics). Used earlier than astrology and originally including it. Astronomical is 1556 as "concerning astronomy;" as "concerning very large figures" it dates from 1899. Astrophysics first recorded 1869.
Online Etymology Dictionary, © 2001 Douglas Harper
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Science Dictionary
astronomy   (ə-strŏn'ə-mē)  Pronunciation Key 
The scientific study of the universe and the objects in it, including stars, planets, nebulae, and galaxies. Astronomy deals with the position, size, motion, composition, energy, and evolution of celestial objects. Astronomers analyze not only visible light but also radio waves, x-rays, and other ranges of radiation that come from sources outside the Earth's atmosphere.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Bible Dictionary

Astronomy

The Hebrews were devout students of the wonders of the starry firmanent (Amos 5:8; Ps. 19). In the Book of Job, which is the oldest book of the Bible in all probability, the constellations are distinguished and named. Mention is made of the "morning star" (Rev. 2:28; comp. Isa. 14:12), the "seven stars" and "Pleiades," "Orion," "Arcturus," the "Great Bear" (Amos 5:8; Job 9:9; 38:31), "the crooked serpent," Draco (Job 26:13), the Dioscuri, or Gemini, "Castor and Pollux" (Acts 28:11). The stars were called "the host of heaven" (Isa. 40:26; Jer. 33:22). The oldest divisions of time were mainly based on the observation of the movements of the heavenly bodies, the "ordinances of heaven" (Gen. 1:14-18; Job 38:33; Jer. 31:35; 33:25). Such observations led to the division of the year into months and the mapping out of the appearances of the stars into twelve portions, which received from the Greeks the name of the "zodiac." The word "Mazzaroth" (Job 38:32) means, as the margin notes, "the twelve signs" of the zodiac. Astronomical observations were also necessary among the Jews in order to the fixing of the proper time for sacred ceremonies, the "new moons," the "passover," etc. Many allusions are found to the display of God's wisdom and power as seen in the starry heavens (Ps. 8; 19:1-6; Isa. 51:6, etc.)

Easton's 1897 Bible Dictionary
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