Nebula Definition

nĕbyə-lə
nebulae, nebulas
noun
A cloud of interstellar gas or dust.
Webster's New World
A galaxy. No longer in technical use.
American Heritage
A small, cloudy opacity on the cornea.
Webster's New World
A liquid preparation used as a spray.
Webster's New World

(astronomy) A cloud in outer space consisting of gas or dust (e.g. a cloud formed after a star explodes).

Wiktionary
Synonyms:
  • vapor
  • nimbus
  • galaxy
  • luminous vapor
  • interstellar dust
  • galactic vapor
  • cloud cluster
  • rarified gas

Other Word Forms of Nebula

Noun

Singular:
nebula
Plural:
nebul, nebulae, nebulas

Origin of Nebula

  • From Latin nebula (“little cloud", "mist"). Akin to Greek νεφέλη, "cloud", German Nebel, "mist", "nebula", Old Norse nifl.

    From Wiktionary

  • Middle English nebule cloud, mist from Latin nebula nebh- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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