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1. Oxford American Dictionary

   cyst

   • IPA[sist]

   美式

   • n.
     in an animal or plant, a thin-walled, hollow organ or cavity containing a liquid secretion; a sac, vesicle, or bladder.；in the body, a membranous sac or cavity of abnormal character containing fluid.

   • noun: cyst, plural noun: cysts

2. • 釋義

   n.

   名詞

   • 1. in an animal or plant, a thin-walled, hollow organ or cavity containing a liquid secretion; a sac, vesicle, or bladder.
   • ▪ in the body, a membranous sac or cavity of abnormal character containing fluid.
   • ▪ a tough protective capsule enclosing the larva of a parasitic worm or the resting stage of an organism.