Share this entry

sidereal Syllabification: si·de·re·al
Pronunciation: /ˌsīˈdirēəl/

Definition of sidereal in English:

adjective

Of or with respect to the distant stars (i.e., the constellations or fixed stars, not the sun or planets).
Example sentences
  • Fixed stars continued to be used as reference points throughout the Middle Ages, and even Copernicus measured positions in a sidereal zodiac beginning from the fixed star Mesartim.
  • Slightly brighter today is Alpherg, which is taken as the starting point for the sidereal zodiac.
  • In the first sphere across the zodiac we see twelve sidereal animals.

Origin

Mid 17th century: from Latin sidereus (from sidus, sider- 'star') + -al.

Words that rhyme with sidereal

arterial, bacterial, cereal, criterial, ethereal, ferial, funereal, immaterial, imperial, magisterial, managerial, material, ministerial, presbyterial, serial, venereal, biomaterial

Definition of sidereal in:

Share this entry

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day exemplum
Pronunciation: ɪɡˈzɛmpləm
noun
an example or model...