| 单词 | tombaugh |
| 释义 | Tombaugh[ tom-baw ] / ˈtɒm bɔ / nounClyde William, 1906–97, U.S. astronomer: discovered Pluto 1930. Words nearby Tombaughtomato hornworm, tomb, Tomba, tombac, Tombalbaye, Tombaugh, tombé, Tombigbee, tombola, tombolo, Tombouctou Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for TombaughTombaugh / (ˈtɒmbəʊ) / nounClyde 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 TombaughTombaugh [ 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. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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