cyst meaning

Pronunciation:   "cyst" in a sentence
  • Noun: cyst  sist
    1. A closed sac that develops abnormally in some body structure 
    2. A small anatomically normal sac or bladderlike structure (especially one containing fluid)
      - vesicle

    Sounds like: cist

    Derived forms: cysts

    See also: cystic, encysted

    Type of: pathology, sac

    Encyclopedia: Cyst

  • [Medicine]
    Any fluid-filled closed cavity or sac that is lined by an EPITHELIUM. Cysts can be of normal,abnormal,non-neoplastic,or neoplastic tissues. n
    1 : a closed sac having a distinct membrane and developing abnormally in a body cavity or structure
    2 : a body resembling a cyst: as
    a : a capsule formed about a minute organism going into a resting or spore stage; also : this capsule with its contents
    b : a resistant cover about a parasite produced by the parasite or the host —compare HYDATID 2a


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  1. cysts are the result of faulty embryogenesis.
  2. an amoeba forms a cyst when conditions are unfavourable.
  3. in older infants and children infection in the cyst is common.
  4. parasitic and nonparasitic cysts rarely occur in the spleen.
  5. cysts should be excised and sterilized to avoid ingestion by the definitive host.

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