The Andromeda Galaxy.
An example of a galaxy is the Milky Way.
- [usuallyG-] the Milky Way: often with the
- a large, independent system of stars, typically containing millions to hundreds of billions of stars: the four classes of galaxies are spiral, barred spiral, elliptical, or irregular, depending on their shape
- an assembly of brilliant or famous people
- a brilliant array of things
Origin of galaxyMiddle English galaxie from Late Latin galaxias from Gr, Milky Way from gala, milk: see galactic
- Astronomy a. Any of numerous large-scale aggregates of stars, gas, and dust that constitute the universe, containing an average of 100 billion (1011) solar masses and ranging in diameter from 1,500 to 300,000 light-years.b. often Galaxy The Milky Way.
- An assembly of brilliant, glamorous, or distinguished persons or things: a galaxy of theatrical performers.
Origin of galaxyMiddle English galaxie the Milky Way from Late Latin galaxiās from Greek from gala galakt- milk ; see melg- in Indo-European roots.
- (now rare) The Milky Way; the apparent band of concentrated stars which appears in the night sky over earth. [from 14th c.]
- (astronomy) Any of the collections of many millions of stars, galactic dust, black holes, etc. existing as independent and coherent systems, of which there are billions in the known universe. [from 19th c.]
From Old French galaxie, from Latin galaxias, from Ancient Greek γαλαξίας (galaxías, “Milky Way”), from γάλα (gala, “milk”).
- (astronomy, dated) the Milky Way Galaxy, from when it was thought the Universe (our universe) had only one galaxy