Daily Almanac for
Nov 29, 2009
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sun•spot



Pronunciation: (sun'spot"), [key]
n.
one of the relatively dark patches that appear periodically on the surface of the sun and affect terrestrial magnetism and certain other terrestrial phenomena.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

sun spidersunspot cycle
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