Local Group
noun Astronomy.
the group of galaxies, at least 25 of which are known, that includes the Milky Way.
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Origin of Local Group
First recorded in 1915–20
Words nearby Local Group
local death, locale, local examinations, local flap, local government, Local Group, local immunity, localism, localite, locality, localization
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British Dictionary definitions for Local Group
Local Group
noun
astronomy the cluster of galaxies to which our galaxy and the Andromeda Galaxy belong
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Scientific definitions for Local Group
Local Group
A group of more than 30 galaxies that includes 2 large spiral galaxies-the Milky Way and Andromeda-as well as numerous smaller galaxies, many of which are dwarfs. The Local Group has a diameter of approximately 10 million light-years, with its gravitational center located between our galaxy and the Andromeda galaxy. It is part of a larger grouping known as the Virgo supercluster.
The American Heritage® Science Dictionary
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