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  1. Oxford American Dictionary

    bulla

    • IPA[ˈbo͝olə]

    美式

    • n.
      a large blister containing serous fluid.；an abnormal air-filled cavity in the lung.

    • noun: bulla, plural noun: bullae

    • 釋義

    名詞

    • 1. a large blister containing serous fluid.
    • ▪ an abnormal air-filled cavity in the lung.
    • 2. a rounded prominence.
    • 3. a round seal attached to a papal bull, typically made of lead.
    • 更多解釋

    bulla

    • IPA[ˈbʊlə]

    英式

    • n.
      a large blister containing serous fluid.

    Oxford Dictionary