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Meaning of Galilean satellites

Gal'ile'an sat'ellites

Pronunciation: [key]
— Astron. Astron.
  1. the four largest and brightest moons of Jupiter: Io, Europa, Ganymede, and Callisto, discovered by Galileo in 1610.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.