noun, Astronomy.
year (def 4c).
sidereal year
See year (sense 5)

Read Also:

  • Sieging

    noun 1. the act or process of surrounding and attacking a fortified place in such a way as to isolate it from help and supplies, for the purpose of lessening the resistance of the defenders and thereby making capture possible. 2. any prolonged or persistent effort to overcome resistance. 3. a series of illnesses, troubles, […]

  • Sieglinde

    noun 1. (in the Nibelungenlied) the wife of Sigmund and mother of Siegfried.

  • Siegmeister

    noun 1. Elie [el-ee] /ˈɛl i/ (Show IPA), 1909–91, U.S. composer.

  • Siemens

    noun, (used with a singular verb) 1. Electricity. the standard unit of electrical conductance in the International System of Units (SI), equal to the reciprocal of the ohm and replacing the equivalent MKS unit (mho) Abbreviation: S. noun 1. (Ernst) Werner von [ernst ver-nuh r fuh n] /ˈɛrnst ˈvɛr nər fən/ (Show IPA), 1816–92, German […]

  • Siem-reap

    noun 1. a city in NW Cambodia, near Angkor.

Disclaimer: Sidereal-year definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.