sidereal
si·de·re·al
adj \sī-ˈdir-ē-əl, sə-\Definition of SIDEREAL
: of, relating to, or expressed in relation to stars or constellations : astral
Origin of SIDEREAL
Latin sidereus, from sider-, sidus star, constellation
First Known Use: 1647
Rhymes with SIDEREAL
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