sidereal meaning

UK US

sidereal (adjective): of or relating to the stars or constellations.

sidereal has 2 meanings in this dictionary.

sidereal as an adjective

  1. of or relating to the stars or constellations
    • sidereal bodies
    • the sidereal system

    Related forms: constellation

  2. (of divisions of time) determined by daily motion of the stars
    • sidereal time

    Opposite: civil

Scrabble score: 9 (letter breakdown)

Word lists: words starting with SI · words ending in AL · 8-letter words

More about sidereal on Wikipedia.