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  1. Oxford Dictionary

    bulb

    • IPA[bʌlb]

    英式

    • n.
      a rounded underground storage organ present in some plants, notably those of the lily family, consisting of a short stem surrounded by fleshy scale leaves or leaf bases, lying dormant over winter.；a light bulb.

    • noun: bulb, plural noun: bulbs

    • 釋義

    名詞

    • 1. a rounded underground storage organ present in some plants, notably those of the lily family, consisting of a short stem surrounded by fleshy scale leaves or leaf bases, lying dormant over winter.
    • 2. a light bulb.
    • 3. an expanded part of a glass tube such as that forming the reservoir of a thermometer.
    • ▪ a hollow flexible container with an opening through which the air can be expelled by squeezing, such as that used to fill a syringe.
    • ▪ a spheroidal dilated part at the end of an anatomical structure.