Sinonim sidereal day

English Thesaurus

1. the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day (noun.time)

hypernym	:	time unit, unit of time,
definition	:	a unit for measuring time periods (noun.time)

hypernym	:	sidereal time,
definition	:	measured by the diurnal motion of stars (noun.time)