Definition of Tombaugh, Clyde William in English:

Tombaugh, Clyde William

proper noun

  • (1906–97), American astronomer. His chief discovery was that of Pluto on 13 March 1930, which he made from the Lowell Observatory in Arizona. Tombaugh subsequently discovered numerous asteroids.

Pronunciation:

Tombaugh, Clyde William

/ˈtɒmbɔː/