sidereal

Adjective

of or relating to the stars or constellations
- "sidereal bodies"
- "the sidereal system"
(of divisions of time) determined by daily motion of the stars
- "sidereal time"
pertaining to the stars

Adj

Of or relating to the stars.
Relating to a measurement of time relative to the position of the stars.
Relating to a measurement of time relative to the point of the vernal equinox.

Origin / Etymology

From Latin sīdereus + -al (cf. Latin sīderālis), from sīdus (“star, constellation”), of unknown ultimate origin, likely a substrate language such as Pre-Greek.

Antonyms

civil

Scrabble Score: 9

sidereal: valid Scrabble (US) TWL word
sidereal: valid Scrabble Word in Merriam-Webster MW Dictionary
sidereal: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 10

sidereal is a valid Words With Friends word