NCI Dictionary of Cancer Terms

  • Resize font
  • Print
  • Email
  • Facebook
  • Twitter
  • Google+
  • Pinterest

The NCI Dictionary of Cancer Terms features 7,804 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

overexpress
(OH-ver-ek-SPRES)
In biology, to make too many copies of a protein or other substance. Overexpression of certain proteins or other substances may play a role in cancer development.