NCI Dictionary of Cancer Terms

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

The NCI Dictionary of Cancer Terms features 7,779 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.

light-emitting diode therapy
(lite-ee-MIH-ting DY-ode THAYR-uh-pee)
Treatment with drugs that become active and may kill cancer cells when exposed to light. Light-emitting diode therapy is type of photodynamic therapy which uses a special type of light to activate the drug. Also called LED therapy.