The Milky Way.
(astronomy, dated) The Milky Way Galaxy, from when it was thought the Universe (our universe) had only one galaxy.
Other Word Forms of Galaxy
Origin of Galaxy
Middle English galaxie the Milky Way from Late Latin galaxiās from Greek from gala galakt- milk melg- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
From Old French galaxie, from Latin galaxias, from Ancient Greek γαλαξίας (galaxías, “Milky Way”), from γάλα (gala, “milk”).
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