Word.ws English Dictionary

Georgium Sidus

Georgium Sidus proper noun: the planet Uranus.

Proper noun

Georgium Sidus

  1. (obsolete) The planet Uranus.
    • I cannot but wish to take this opportunity of expressing my sense of gratitude, by giving the name Georgium Sidus […] to a star, which (with respect to us) first began to shine under His auspicious reign.1783, William Herschel, Philosophical transactions of the Royal Society of London, section 73.2
    • The exclusion from the courts of the malign influence of all authorities after the Georgium sidus became ascendant, would uncanonize Blackstone.1812, Thomas Jefferson, letter, 17 June

Origin of Georgium Sidus

Learned borrowing from Latin Geōrgium Sīdus. Coined by German-born British astronomer and composer William Herschel in 1781, after King George III.

Questions about Georgium Sidus

What does Georgium Sidus mean?
Georgium Sidus means the planet Uranus.
What part of speech is Georgium Sidus?
Georgium Sidus is a proper noun.

Words near Georgium Sidus in the dictionary

  1. Georgious
  2. Georgis
  3. Georgism
  4. Georgist
  5. Georgists
  6. Georgium Sidus
  7. Georgopoulos
  8. Georgopouloses
  9. Georgy
  10. georisk
  11. georisks

Source and license

Adapted from Wiktionary: Georgium Sidus (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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