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Showing results for extragalactic. Search instead for extrahepatic.

extragalactic

American  
[ek-struh-guh-lak-tik] / ˌɛk strə gəˈlæk tɪk /

adjective

  1. outside the Milky Way system.


extragalactic British  
/ ˌɛkstrəɡəˈlæktɪk /

adjective

  1. occurring or existing beyond the 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

Etymology

Origin of extragalactic

First recorded in 1850–55; extra- + galactic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

This is the first time a star of extragalactic origin has been found in the vicinity of the super massive black hole.

From Science Daily Dec. 4, 2023

Last year, IceCube physicists reported 79 neutrinos coming from the heart of a nearby galaxy called NGC 1068, the first steady source of extragalactic neutrinos pinpointed.

From Science Magazine Jun. 21, 2023

However, in recent research published in Science, an extragalactic source for these subatomic particles has been identified.

From Scientific American Dec. 20, 2022

As gamma rays travel through space, they can collide with photons in the extragalactic background, producing pairs of electrons and losing a bit of energy in the process.

From New York Times Dec. 3, 2018

At such a rate, we will reach it in ten billion years, and extragalactic astronomy will then be a great deal easier.

From "Cosmos" by Carl Sagan

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