sidereal

Definition of Sidereal in English :

1. sidereal

of or relating to the stars or constellations

Example Sentences:
'sidereal bodies'
'the sidereal system'

2. sidereal

(of divisions of time) determined by daily motion of the stars

Example Sentences:
'sidereal time'

WordNet Lexical Database for English. Princeton University. 2010.

Sidereal

adjective

1.

of, relating to, or involving the stars

2.

determined with reference to one or more stars

the sidereal day

adjective

1.

of or pertaining to the stars

2.

expressed in reference to the stars

adj.

1. Of, relating to, or concerned with the stars or constellations; stellar.

2. Measured or determined by means of the apparent daily motion of the stars: sidereal time.