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Noun: nebula (nebulae,nebulas)  ne-byu-lu
  1. A medicinal liquid preparation intended for use in an atomizer
  2. Cloudiness of the urine
  3. An immense cloud of gas (mainly hydrogen) and dust in interstellar space
  4. (pathology) a faint cloudy spot on the cornea

Derived forms: nebulae, nebulas

Type of: cloud, dapple, fleck, formulation, maculation, patch, preparation, speckle, spot, symptom

Encyclopedia: Nebula