| NOUN | time | sidereal day, day | the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day |
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| Meaning | The time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day. | |
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| Synonym | day | |
| Broader | sidereal time | Measured by the diurnal motion of stars |
| time unit, unit of time | A unit for measuring time periods | |
| Spanish | día sideral | |
| Catalan | dia sideral, dia sideri | |
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