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[guh-lak-tik] /gəˈlæk tɪk/
  1. of or relating to a galaxy.
  2. of or relating to the Milky Way.
immense; huge; vast:
a problem of galactic proportions.
Physiology. pertaining to or stimulating the secretion of milk.
Origin of galactic
First recorded in 1830-40, galactic is from the Greek word galaktikós milky. See galact-, -ic
Related forms
nongalactic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for galactic
Contemporary Examples
Historical Examples
  • Three of them were still in the uniform of the galactic Guards.

    Happy Ending Fredric Brown
  • The beams of light glistened off the spire of the galactic cache.

    Warrior Race Robert Sheckley
  • He was using a protractor, which was divided into galactic degrees.

    The Players Everett B. Cole
  • There were only two alternatives: the Empire or galactic anarchy.

    Ministry of Disturbance Henry Beam Piper
  • He turned and glared at Faress; professors do not glare at galactic emperors.

    Ministry of Disturbance Henry Beam Piper
British Dictionary definitions for galactic


(astronomy) of or relating to a galaxy, esp the Galaxy: the galactic plane
(med) of or relating to milk
Word Origin
C19: from Greek galaktikos; see galaxy
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 galactic

1839, "of the Milky Way," from Late Latin galacticus, from galaxias (see galaxy). In modern scientific sense "pertaining to (our) galaxy," from 1849.

Online Etymology Dictionary, © 2010 Douglas Harper
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galactic in Medicine

galactic ga·lac·tic (gə-lāk'tĭk)

  1. Relating to milk.

  2. Promoting the flow of milk.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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