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Sun spot

 - 2 dictionary results

sun⋅spot

[suhn-spot]
–noun
one of the relatively dark patches that appear periodically on the surface of the sun and affect terrestrial magnetism and certain other terrestrial phenomena.

Origin:
1805–15; sun + spot


sunspotted, adjective
sun⋅spot⋅ted⋅ness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To Sun spot
sun·spot   (sŭn'spŏt')   
n.  Any of the relatively cool dark spots appearing periodically in groups on the surface of the sun that are associated with strong magnetic fields.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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