galaxies
n. countable B2 Upper Intermediate US //ˈɡæɫəksiz// UK //ɡˈælɐksˌiz// gal·ax·ies
n. a huge system of stars, gas, and dust held together by gravity. Our own solar system is part of the Milky Way galaxy.
n. a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.
The Milky Way is our home galaxy.
Astronomers use powerful telescopes to study distant galaxies.
The Hubble Deep Field image reveals thousands of faint galaxies, each containing billions of stars, scattered across the vastness of the early universe.