from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Cloudy, misty, or hazy.
  • adjective Lacking definite form or limits; vague.
  • adjective Of, relating to, or characteristic of a nebula.

from The Century Dictionary.

  • Cloudy; hazy: used literally or figuratively.
  • In astronomy, pertaining to a nebula; having the appearance of a nebula; nebular.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Cloudy; hazy; misty.
  • adjective (Astron.) Of, pertaining to, or having the appearance of, a nebula; nebular; cloudlike.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective In the form of a cloud or haze; hazy.
  • adjective Vague or ill-defined.
  • adjective Relating to a nebula or nebulae.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective lacking definite form or limits
  • adjective lacking definition or definite content
  • adjective of or relating to or resembling a nebula


from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English, from Latin nebulōsus, from nebula, cloud; see nebh- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Middle English, from Latin nebulōsus ("full of mist, foggy, cloudy"), from nebula ("mist, vapour, cloud"), from Proto-Indo-European *nébʰos (“cloud, vapor, fog, moist, sky”). Cognate with Ancient Greek νέφος (néphos, "cloud"), Old High German nebul ("cloud, fog") (German Nebel), Old English nifol, neowol ("dark, gloomy, obscure, precipitous, prone"). More at neveling, nuel.


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