NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,855 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 (MIH-lih-gram)
- A measure of weight. A milligram is approximately 450,000 times smaller than a pound and 28,000 times smaller than an ounce.