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⇱ nebula - WordReference.com Dictionary of English

nebula

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˈnɛbjʊlə/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/ˈnɛbjələ/ ,USA pronunciation: respelling(neb′yə lə)

Inflections of 'nebula' (n):
nebulae
npl
nebulas
npl

WordReference Random House Learner's Dictionary of American English © 2026
neb•u•la /ˈnɛbyələ/USA pronunciation   n. [countable], pl. -lae /-ˌli, -ˌlaɪ/USA pronunciation  -las. 
  1. Astronomya cloud of gas and dust in outer space between stars.
neb•u•lar, adj. 

WordReference Random House Unabridged Dictionary of American English © 2026
neb•u•la  (neb′yə lə),USA pronunciation n., pl. -lae (-lē′, -lī′),USA pronunciation -las. 
  1. Astronomy
    • AstronomyAlso called diffuse nebula. a cloud of interstellar gas and dust. Cf. dark nebula, emission nebula, reflection nebula. 
    • (formerly) any celestial object that appears nebulous, hazy, or fuzzy, and extended in a telescope view.
  2. Pathology
    • a faint opacity in the cornea.
    • cloudiness in the urine.
  3. Drugsany liquid medication prepared for use as a spray.
  • Latin: a mist, vapor, cloud; akin to Greek nephélē cloud, German Nebel fog, haze
  • 1655–65
neb′u•lar, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
nebula /ˈnɛbjʊlə/ n ( pl -lae /-ˌliː/, -las)
  1. a diffuse cloud of particles and gases (mainly hydrogen) that is visible either as a hazy patch of light (either an emission or a reflection nebula) or an irregular dark region against a brighter background (dark nebula)
  2. opacity of the cornea
Etymology: 17th Century: from Latin: mist, cloud; related to Greek nephétē cloud, Old High German nebul cloud, Old Norse njól nightˈnebular adj
'nebula' also found in these entries (note: many are not synonyms or translations):
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