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  1. Oxford American Dictionary

    black hole

    • IPA[ˌblak ˈhōl]

    美式

    • n.
      a region of space having a gravitational field so intense that no matter or radiation can escape.；a place where people or things, especially money, disappear without trace

    • noun: black hole, plural noun: black holes

    • 釋義

    名詞

    • 1. a region of space having a gravitational field so intense that no matter or radiation can escape.
    • ▪ a place where people or things, especially money, disappear without trace the moribund economy has been a black hole for federal funds juveniles lost for good in the black hole of the criminal justice system