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  1. Oxford American Dictionary

    nanosecond

    • IPA[ˈnanōˌsek(ə)n(d)]

    美式

    • n.
      one billionth of a second.；a very short time; a moment

    • noun: nanosecond, plural noun: nanoseconds

    • 釋義

    名詞

    • 1. one billionth of a second.
    • ▪ a very short time; a moment he replied without a nanosecond's hesitation