NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,894 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.
- listen (THROM-boh-sy-toh-PEE-nee-uh)
A condition in which there is a lower-than-normal number of platelets in the blood. It may result in easy bruising and excessive bleeding from wounds or bleeding in mucous membranes and other tissues.