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sunspot
(sʌnspɒt)
Word forms: plural sunspots
countable noun
Sunspots are dark cool patches that appear on the surface of the sun and last for about aweek.
sunspot in British English
(ˈsʌnˌspɒt)
noun
1.
any of the dark cool patches, with a diameter of up to several thousand kilometres, that appear on the surface of the sun and last about a week. They occur in approximately 11-year cycles and possess a strong magnetic field
2. informal
a sunny holiday resort
3. Australian
a small cancerous spot produced by overexposure to the sun
Derived forms
sunspotted (ˈsunˌspotted) adjective
sunspot in American English
(ˈsʌnˌspɑt)
noun
any of the temporarily cooler regions appearing cyclically as dark spots on the surface of the sun, accompanied by increased geomagnetic disturbances
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