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Galaxy vs Undefined - What's the difference?

galaxy | undefined |

As a proper noun galaxy

is (astronomy|dated) the milky way galaxy, from when it was thought the universe (our universe) had only one galaxy.

As an adjective undefined is

lacking a definition or value.

galaxy

English

Noun

(galaxies)
  • * 1633 , John Donne, "Sapho to Philænis":
    • So may thy cheekes red outweare scarlet dye, / And their white, whitenesse of the Galaxie [...].
  • (galaxy) Any of the collections of many millions of stars, galactic dust, black holes, etc. existing as independent and coherent systems, of which there are billions in the known universe.

    • Synonyms

    * (astronomy) G (abbreviation)

    Derived terms

    * active galaxy * dwarf galaxy * elliptical galaxy * extragalactic * galactic * galaxy cluster / cluster of galaxies * galaxy filament / filament of galaxies * galaxy nucleus * galaxy sheet / sheet of galaxies * galaxy wall / wall of galaxies * irregular galaxy * lenticular galaxy * spiral galaxy * whirlpool galaxy

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined