[ 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

non·ga·lac·tic, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for galactic

British Dictionary definitions for galactic


/ (ɡəˈlæktɪk) /


astronomy of or relating to a galaxy, esp the Galaxythe galactic plane
med of or relating to milk

Word Origin for galactic

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

Medicine definitions for galactic


[ gə-lăktĭk ]


Relating to milk.
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.