Definition of sidereal period in English:

sidereal period

Line breaks: si|der¦eal period

noun

Astronomy
The period of revolution of one body about another with respect to the distant stars.
More example sentences
  • Each year is still equivalent to the sidereal period of the Earth, one revolution around the Sun.
  • He discovered that in 7 cycles of 12 years, Jupiter had completed seven and one twelfth orbits, giving its sidereal period as 11.859 years (accurate to within one part in 4000).
  • The names of our weekdays, and the fact that there are seven of them, probably reflect astrological assumptions concerning the significance of the sidereal periods of the planets.

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Pronunciation: dɪˈmɒrəlʌɪz
verb
cause (someone) to lose confidence or hope