| 单词 | sidereal day |
| 释义 | sidereal daySEE SYNONYMS FOR sidereal day ON THESAURUS.COM noun Astronomy.the interval between two successive passages of the vernal equinox over the meridian, being about four minutes shorter than a mean solar day. Origin of sidereal dayFirst recorded in 1785–95 Words nearby sidereal dayside of the tracks, side-on, sidepiece, side pot, sidereal, sidereal day, sidereal hour, sidereal hour angle, sidereal month, sidereal period, sidereal time Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for sidereal daysidereal day nounSee day (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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