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Pronunciation: o-kult', ok'ult


  1. Hidden; concealed; not manifest.
  2. Denoting a concealed hemorrhage, the blood being inapparent or localized to a site where it is not visible.
  3. In oncology, a clinically unidentified primary tumor with recognized metastases.

See: occult blood

[L. oc-culo, pp. -cultus, to cover, hide]

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.