sunspot

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sunspot

Dermatology
(1) Actinic keratosis, see there.
(2) Actinic lentigo, see there.
 
Meteorology
A region of intense magnetic activity on the sun’s surface resulting in a local reduction in convection and temperature, which appears are dark spots.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
Every week I have a top prize for the best star spot or story sent to me.
Can anyone beat Paul's record for the amount of star spots in one week?
Graham Norton!), star spot at a film premiere, or meet your favourite author.
Among the topics are on steep cliffs and fountains of dust: the Rosetta Comet 67P/Churyumov-Gerasimenko, the asteroid spin-rate study: looking for super fast rotators in the Outer Main Belt, charged particle measurement in the Saturnian magnetosphere during the Cassini Era 2004-17, the story of interstellar pickup ions and their excitation of hydromagnetic waves in the solar wind, a study of the seasonal variation of the sublimation rate of the Sputnik Planum Ice Sheet on Pluto, and the timing relationship of stellar superflares and positions of the star spots. ([umlaut] Ringgold, Inc., Portland, OR)
Rounding off our handful of Star Spots this week is one of Look North's reporters ADRIAN PITCHER who was also sighted on Northumberland Street.