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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.

n. A region on the sun's surface with a lower temperature than its surroundings and intense magnetic activity.

n. a cooler darker spot appearing periodically on the sun's photosphere; associated with a strong magnetic field

"Decadal and longer changes in sunspot activity impacting warming and cooling cloud cover patterns are now being recognized as an important factor."

dapple    maculation    speckle    fleck    patch   

tricarboxylic    retry    extra-curricular    year.that    pre-contest