one of the main characters in Sir Arthur CONAN DOYLE 's stories about Sherlock HOLMES . Watson is HOLMES's friend and helps him in his work, but he is much less intelligent than HOLMES.
(1928- ) a US scientist who, together with Francis CRICK, discovered the structure of DNA, the substance that carries GENETIC information in the cells of plants, animals and humans. They won a NOBEL PRIZE for their work.