[ tom-baw ]
/ ˈtɒm bɔ /
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Clyde William, 1906–97, U.S. astronomer: discovered Pluto 1930.
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Words nearby Tombaugh
tomato hornworm, tomb, Tomba, tombac, Tombalbaye, Tombaugh, tombé, Tombigbee, tombola, tombolo, Tombouctou
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How to use Tombaugh in a sentence
Tombaugh was referring to a ninth planet that had been predicted to orbit the sun beyond Neptune.Pluto is no longer a planet — or is it?|Lisa Grossman|October 28, 2021|Science News For Students
British Dictionary definitions for Tombaugh
/ (ˈtɒmbəʊ) /
Clyde William. 1906–97, US astronomer, who discovered (1930) the dwarf planet Pluto
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for Tombaugh
Clyde William 1906-1997
[ tŏm′bô′ ]
American astronomer who discovered Pluto in 1930. Beyond the orbit of Neptune, the existence of a planet known as Planet X, had been predicted some years earlier by the American astronomer Percival Lowell based on apparent perturbations in the orbits of Neptune and Uranus. Tombaugh's careful analysis of celestial photographs did reveal a new celestial body, although it was too small to have caused the perturbations. Planet X itself was never found.
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