Meaning & Definition of word "Nebula"

Nebula

/ˈnɛb.jʊ.lə/

noun:

  • 1. A cloud of gas and dust in outer space, typically one that is the birthplace of stars.
    • Example: The Orion Nebula is one of the most studied regions of star formation.
  • 2. A diffuse mass of interstellar matter, sometimes visible as a luminous object in the sky.
    • Example: The Andromeda Galaxy contains many bright nebulae that can be observed with a telescope.
  • 3. In astronomical classification, a nebula may also refer to any astronomical object that is not a star or a galaxy.
    • Example: Hubble Space Telescope has captured stunning images of various nebulae throughout the universe.

Etymology

Latin word 'nebula', meaning 'mist' or 'fog'

Common Phrases and Expressions

reflection nebula:

A type of nebula that reflects light from nearby stars.

planetary nebula:

A shell of gas ejected from a red giant star at the end of its life cycle.

supernova remnant:

The remains of a star that has exploded in a supernova, often appearing as a nebula.

Related Words

supernova:

The explosion of a star that results in a brilliant flash of light and can lead to the formation of a nebula.

star:

A luminous celestial body made of plasma, often formed within a nebula.

galaxy:

A system of stars, gases, and dust held together by gravity, containing many nebulae.

Slang Meanings of nebula