sidereal
adjective/saɪˈdɪəriəl/
/saɪˈdɪriəl/
(astronomy)- related to the stars that are far away, not the sun or planetsWord Originmid 17th cent.: from Latin sidereus (from sidus, sider- ‘star’) + -al.
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
Check pronunciation:
sidereal