noun
1. : time based on the sidereal day consisting of 24 hours of sidereal minutes and seconds
2. : the hour angle of the March equinox at a place
noun
1. : time based on the sidereal day consisting of 24 hours of sidereal minutes and seconds
2. : the hour angle of the March equinox at a place
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012