Definition of Magellanic Cloud in English:

Magellanic Cloud

noun

Astronomy
  • Either of two small galaxies associated with the Milky Way and visible at night in the southern hemisphere as cloudy spots; more fully "Large Magellanic Cloud", "Small Magellanic Cloud"; Black Magellanic Cloud: see "black [noun]".

Origin

Late 17th century; earliest use found in Philosophical Transactions of the Royal Society of London.