heliocentric

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he·li·o·cen·tric / ˌhēlēəˈsentrik/ • adj. having or representing the sun as the center, as in the accepted astronomical model of the solar system. Compare with geocentric. ∎ Astron. measured from or considered in relation to the center of the sun: heliocentric distance.DERIVATIVES: he·li·o·cen·tri·cal·ly / -trik(ə)lē/ adv.

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