NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,098 terms related to cancer and medicine.

We offer a widget that you can add to your website to let users look up cancer-related terms. Get NCI’s Dictionary of Cancer Terms Widget.

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nanogram
(NA-noh-gram)
A measure of weight. One nanogram weighs a billion times less than one gram, and almost a trillion-times less than a pound.