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Medical Dictionary

cyst

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noun \ˈsist\

Medical Definition of cyst

  1. 1:  a closed sac having a distinct membrane and developing abnormally in a body cavity or structure

  2. 2:  a body resembling a cyst: asa:  a capsule formed about a minute organism going into a resting or spore stage; also :  this capsule with its contentsb:  a resistant cover about a parasite produced by the parasite or the host—compare hydatid 2a





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