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View synonyms for astronomy

astronomy

[ uh-stron-uh-mee ]

noun

  1. the science that deals with the material universe beyond the earth's atmosphere.


astronomy

/ əˈstrɒnəmɪ /

noun

  1. 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
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


astronomy

/ ə-strŏnə-mē /

  1. 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.


astronomy

  1. 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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Word History and Origins

Origin of astronomy1

First recorded in 1175–1225; Middle English astronomie, from Anglo-French, from Latin astronomia, from Greek; equivalent to astro- + -nomy
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Word History and Origins

Origin of astronomy1

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

How does astronomy compare to similar and commonly confused words? Explore the most common comparisons:

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Example Sentences

The new LEO satellites don’t affect every astronomy program the same way.

There is no technical or regulatory obstacle to launching a constellation of ultra-bright satellites that might render many or most astronomy programs impossible.

The true threat these mega-constellations pose to the astronomy community is only just beginning to be understood.

The team used the tool to confirm 50 new potential planets, a first for artificial intelligence as applied to astronomy.

From Fortune

Remotely operated and robotic telescopes, no matter how incredible, can also only satisfy some of the diverse observational needs of the astronomy community.

The authors took care to eliminate the possibility of other sources of polarization, which is always a concern in astronomy.

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

Nearly everything we know about dark matter so far comes from astronomy.

One of the big challenges in astronomy involves determining when the first galaxies formed, and what they looked like.

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

A learned Professor declared that no person unacquainted with astronomy could correlate “Moon” to “Omnibus.”

First of all comes astronomy, including the phenomena exhibited in the heavens, beyond the limits of the earth's atmosphere.

Science began with astronomy, and the first instruments which men contrived for the purpose of investigation were astronomical.

As stated in the chapter on astronomy, some trace of the triangular form appears in the land masses of the planet Mars.

He talked until late into the night about astronomy and its latest discoveries.

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