Dean, James BrE AmE
(1931–55) a US film actor who became extremely famous, and then died in a car crash at the age of 24. After his death he became even more popular, and he is still thought of, especially by young people, as a typical example of a young ↑ rebel (=someone who refuses to do follow social rules or behave in the way that other people want them to) . His films include East of Eden (1955) and Rebel Without a Cause (1955).