Definition of Cockcroft, Sir John Douglas in English:

Cockcroft, Sir John Douglas

proper noun

  • (1897–1967), English physicist. In 1932, working with Ernest Walton, he succeeded in splitting the atom. Nobel Prize for Physics (1951), shared with Walton.

Pronunciation:

Cockcroft, Sir John Douglas

/ˈkäkˌkrôft/