Nebula

usgb/ˈnebjələ/
noun

A cloud of gas and dust in outer space, often visible to us as a hazy spot of light.

Astronomers discover a new nebula in the Milky Way galaxy.
Visual representation of "nebula" - A cloud of gas and dust in outer space, often visible to us as a hazy spot of light

Often appears as...

  • planetary nebula
  • star-forming nebula

Usage tips

Technical

Definition 1 of 2
Visual representation of "nebula"
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Astronomy Context

Understand 'nebula' is mainly used in astronomy; not common in daily speech.

Illustration for Astronomy Context
My favorite photo taken by the telescope is that of the Orion Nebula.
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Space Structure

'Nebula' is specific to space; don't confuse it with any Earth-based phenomena.

Illustration for Space Structure
The Crab Nebula was formed by a supernova explosion.
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Metaphorical Use

Sometimes used metaphorically to describe something vague or indistinct.

Illustration for Metaphorical Use
His explanation was a nebula of abstract concepts.
Visual representation of the word "Nebula"

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