单词 | sirius |
释义 | Sirius[ sir-ee-uhs ] / ˈsɪr i əs / SEE SYNONYMS FOR Sirius ON THESAURUS.COM nounAstronomy. the Dog Star, the brightest-appearing star in the heavens, located in the constellation Canis Major. Also Sir·i·us .Classical Mythology.
Origin of Sirius1325–75; Middle English <Latin Sīrius <Greek Seírios Words nearby SiriusSir Gawain and the Green Knight, siriasis, Sirica, Siricius, siris, Sirius, sirloin, sirocco, sirolimus, sironize, siroset Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for SiriusBritish Dictionary definitions for SiriusSirius / (ˈsɪrɪəs) / nounthe brightest star in the sky after the sun, lying in the constellation Canis Major. It is a binary star whose companion, Sirius B, is a very faint white dwarf. Distance: 8.6 light yearsAlso called: the Dog Star, Canicula, Sothis Related adjectives: canicular, cynic Word Origin for SiriusC14: via Latin from Greek Seirios, of obscure origin 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 SiriusSirius [ sĭr′ē-əs ] The brightest star seen in the night sky. It is in the constellation Canis Major. It is a white main-sequence star on the Hertzsprung-Russell diagram, with an apparent magnitude of -1.5. Sirius is a binary star, and its companion is a white dwarf star referred to as the Pup. Sirius is also known as the Dog Star. Scientific name: Alpha Canis. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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