NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,926 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.

developmental stage
(dee-VEH-lup-MEN-tul stayj)
The physical, mental, and emotional stages a child goes through as he or she grows and matures.