n.
1.United States telephone engineer who assisted Alexander Graham Bell in his experiments (1854-1934)
2.United States psychologist considered the founder of behavioristic psychology (1878-1958)
3.United States geneticist who (with Crick in 1953) helped discover the helical structure of DNA (born in 1928)
Idiom of the Day
make a clean sweep of (something)
to do or win something completely or thoroughly
The new political party made a clean sweep of the large cities during the election.