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Great Wall
(redirected from Chinese Wall)

    Also found in: Dictionary/thesaurus, Legal, Financial, Wikipedia, Hutchinson 0.05 sec.
Great Wall [¦grāt ′wȯl]
(astronomy)
A layer of several thousand galaxies, estimated to extend for about 500 × 106by 200 × 106light-years but to be less than 15 × 106light-years thick, constituting the largest known structure in the universe.


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