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auroral isochasm |
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auroral isochasm [ə′rȯr·əl ′ī·sō‚kaz·əm] (geophysics) A line connecting places of equal auroral frequency, averaged over a number of years. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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