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  1. plumule

    • IPA[ˈpluːmjuːl]

    英式

    • n.
      the rudimentary shoot or stem of an embryo plant.;a bird's down feather, numbers of which form an insulating layer under the contour feathers.
    • noun: plumule, plural noun: plumules

    • 更多解釋
    • IPA[ˈplo͞omˌyo͞ol]

    美式

    • n.
      the rudimentary shoot or stem of an embryo plant.

    Oxford American Dictionary