| 单词 | trans-neptunian object |
| 释义 | trans-Neptunian objector trans·nep·tu·ni·an ob·ject[ trans-nep-too-nee-uhn ob-jikt, ‐jekt, ‐tyoo‐, tranz ] / ˈtræns nɛpˈtu ni ən ˈɒb dʒɪkt, ‐dʒɛkt, ‐ˈtyu‐, ˈtrænz / noun Astronomy.any celestial object in our solar system whose orbit lies beyond Neptune, including Pluto: there may be some 70,000 trans-Neptunian objects orbiting 30–50 astronomical units from the sun, with diameters of at least 62 miles (100 km). Abbreviation: TNO Origin of trans-Neptunian objectFirst recorded in 1920–25 Words nearby trans-Neptunian objecttransmundane, transmural, transmutation, transmute, transnational, trans-Neptunian object, Transnet, Trans-New Guinea phylum, transoceanic, transom, transom window Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Scientific definitions for trans-Neptunian objecttrans-Neptunian object [ trăns′nĕp-tōōn′ē-ən ] A celestial object that orbits the sun at a greater distance on average than Neptune. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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