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单词 cyst
释义 cyst
n.
  1. Med. a sac containing morbid matter, a parasitic larva, etc.
  2. Biol. a a hollow organ, bladder, etc., in an animal or plant, containing a liquid secretion. b a cell or cavity enclosing reproductive bodies, an embryo, parasite, micro-organism, etc.
Etymology: LL cystis f. Gk kustis bladder
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