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[uh-stron-uh-mer] /əˈstrɒn ə mər/
an expert in astronomy; a scientific observer of the celestial bodies.
1325-75; Middle English; see astronomy, -er1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for astronomers
  • For years, astronomers tried to define a planet by shape, orbit around a star and its influence on other bodies.
  • astronomers say it probably wasn't deadly because the comet was larger than they thought.
  • astronomers announced yesterday that they had found the remains of an ancient cosmic car wreck.
  • But astronomers and chemists have been equally despised.
  • The universe appears to be clumpier than astronomers expected, according to the largest galaxy survey to date.
  • astronomers have made observations and simulations that in some way capture the enormity of our cosmos.
  • astronomers have long thought this sort of intergalactic violence could be the normal way large galaxies grow.
  • One of the largest known stars in the universe is shrinking rapidly, and astronomers don't know why.
  • Most astronomers figured they would need bigger telescopes to find these faint objects.
  • It was once thought that light pollution only affected astronomers, who need to see the night sky in all its glorious clarity.
British Dictionary definitions for astronomers


a scientist who studies astronomy
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
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Word Origin and History for astronomers



late 14c., from astronomy (q.v.), replacing French import astronomyen (c.1300), which, had it survived, probably would have yielded *astronomian. Still in Shakespeare used in places where we would write astrologer.

Online Etymology Dictionary, © 2010 Douglas Harper
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