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  1. Oxford American Dictionary

    nebula

    • IPA[ˈnebyələ]

    美式

    • n.
      a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter.；(in general use) any indistinct bright area in the night sky, for example, a distant galaxy.

    • noun: nebula, plural noun: nebulae

    • 釋義
    • 相關詞

    名詞

    • 1. a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter.
    • ▪ dated (in general use) any indistinct bright area in the night sky, for example, a distant galaxy.
    • 2. a clouded spot on the cornea causing defective vision.

    Great Nebula

    • ph.
      the Andromeda Galaxy.

    Oxford American Dictionary

    Great Nebula

    • ph.
      the Andromeda Galaxy.

    Oxford Dictionary

    absorption nebula

    • n.
      another term for dark nebula

    Oxford Dictionary

    dark nebula

    • n.
      a nonluminous nebula of dust and gas that is observable because it obscures light from other ...

    Oxford American Dictionary

    Crab Nebula

    • ph.
      an irregular patch of luminous gas in the constellation Taurus, believed to be the remnant of a ...

    Oxford American Dictionary

    emission nebula

    • n.
      a nebula that shines with its own light.

    Oxford Dictionary

    absorption nebula

    • n.
      another term for dark nebula

    Oxford American Dictionary

    Crab Nebula

    • ph.
      an irregular patch of luminous gas in the constellation Taurus, believed to be the remnant of a ...

    Oxford Dictionary

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    nebula

    • IPA[ˈnɛbjʊlə]

    英式

    • n.
      a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright ...

    Oxford Dictionary