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  1. nannofossil

    • IPA[ˈnanōˌfäsəl]

    美式

    • n.
      the fossil of a minute planktonic organism, especially a calcareous unicellular alga.
    • noun: nannofossil, plural noun: nannofossils

    • 更多解釋
    • IPA[ˈnanəʊˌfɒs(ə)l]

    英式

    • n.
      the fossil of a minute planktonic organism, especially a calcareous unicellular alga.

    Oxford Dictionary