NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,359 terms related to cancer and medicine.

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adolescent
(A-doh-LEH-sent)
A young person who has begun puberty but has not yet become an adult. During adolescence a child experiences physical and hormonal changes that mark the transition into adulthood. Adolescents are generally between the ages of 10 and 19 years.