SIDEREAL


Meaning of SIDEREAL in English

sīˈdirēəl adjective

Etymology: Latin sidere us sidereal (from sider-, sidus star, constellation + -eus -eous) + English -al; akin to Lithuanian svidus shining and probably to Old High German swīdan to burn, Old Norse svītha to burn, Old English swathul smoke

1. : of or relating to stars or constellations

sidereal system

sidereal bodies

2. : expressed in relation to the heavens above — see sidereal time

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.