| 单词 | sidereal year |
| 释义 | sidereal yearSEE SYNONYMS FOR sidereal year ON THESAURUS.COM noun Astronomy.a division of time equal to the equinoctial year plus 20 minutes, representing the time required for the earth to complete one revolution around the sun, measured with relation to the fixed stars. Compare anomalistic year. Origin of sidereal yearFirst recorded in 1675–85 Words nearby sidereal yearsidereal hour, sidereal hour angle, sidereal month, sidereal period, sidereal time, sidereal year, siderite, SI derived unit, sidero-, sideroad, sideroblast Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for sidereal yearsidereal year nounSee year (def. 5) 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 |
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