NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,370 terms related to cancer and medicine.

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treatment cycle
(TREET-ment SY-kul)
A period of treatment followed by a period of rest (no treatment) that is repeated on a regular schedule. For example, treatment given for one week followed by three weeks of rest is one treatment cycle. When this cycle is repeated multiple times on a regular schedule, it makes up a course of treatment. Also called cycle of treatment.