galactic year

noun

The time taken for the Solar System to orbit around the center of the Milky Way Galaxy, estimated to be from 225 to 250 million years.

Similar
cosmic year
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Meanings

noungalactic year (plural galactic years)

plural galactic years

  1. astronomyThe time taken for the Solar System to orbit around the center of the Milky Way Galaxy, estimated to be from 225 to 250 million years.

    Synonyms: cosmic year

  2. broadlyastronomyThe time taken for a celestial body to complete a quasi-orbit in a galaxy.

Synonyms & antonyms

nounThe time taken for the Solar System to orbit around the center of the Milky Way Galaxy, estimated to be from 225 to 250 million years.

Similar
cosmic year
Also see
cosmic yearyear
Cite this entry
APA

galactic year. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/galactic%20year

MLA

“galactic year.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/galactic%20year. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “galactic year,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/galactic%20year.

Source: galactic year on Wiktionary, CC BY-SA 4.0.