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astronomer

[uh-stron-uh-mer]
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noun
  1. an expert in astronomy; a scientific observer of the celestial bodies.
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Origin of astronomer

Middle English word dating back to 1325–75; see origin at astronomy, -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

astrophysicist

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British Dictionary definitions for astronomer

astronomer

noun
  1. a scientist who studies astronomy
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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

Word Origin and History for astronomer

n.

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.

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Online Etymology Dictionary, © 2010 Douglas Harper