galactic

adjective

ga·​lac·​tic gə-ˈlak-tik How to pronounce galactic (audio)
1
: of or relating to a galaxy and especially the Milky Way galaxy
2
: huge
a galactic sum of money

Examples of galactic in a Sentence

a galactic serving of soda that would have been enough for three moviegoers
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Radiation exposure results from galactic cosmic rays and solar particle events. Eileen Falkenberg-Hull, MSNBC Newsweek, 27 May 2025 The new findings describe a galactic battle between the galaxy on the right in the image above, which hosts an actively feeding black hole, a quasar, at its center, and its neighbor on the left, which is being bombarded by intense radiation that disrupts its ability to form new stars. Sharmila Kuthunur, Space.com, 24 May 2025 But these central galactic monsters are millions of times more massive, and some have grown to the Brobdingnagian heft of billions of solar masses. Phil Plait, Scientific American, 22 May 2025 Meanwhile, Earth sits on one of the Milky Way’s spiral arms (the Orion arm), roughly halfway from the galactic center. Jack Knudson, Discover Magazine, 19 May 2025 See All Example Sentences for galactic

Word History

Etymology

borrowed from New Latin galacticus (taken as derivative of Galaxias "Milky Way"), borrowed from Greek galaktikós "milky," from galakt-, gála "milk" + -ikos -ic entry 1 — more at galaxy

First Known Use

1839, in the meaning defined at sense 1

Time Traveler
The first known use of galactic was in 1839

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Cite this Entry

“Galactic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/galactic. Accessed 6 Jun. 2025.

Kids Definition

galactic

adjective
ga·​lac·​tic gə-ˈlak-tik How to pronounce galactic (audio)
: of or relating to a galaxy

More from Merriam-Webster on galactic

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