NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,916 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.

respiratory therapist
(RES-pih-ruh-TOR-ee THAYR-uh-pist)
A health professional trained to evaluate and treat people who have breathing problems or other lung disorders.