sunspot
pronunciation
How to pronounce sunspot in British English: UK [ˈsʌnspɒt]
How to pronounce sunspot in American English: US [ˈsʌnspɑt]
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- Noun:
- a cooler darker spot appearing periodically on the sun's photosphere; associated with a strong magnetic field
Word Origin
- sunspot (n.)
- also sun-spot, 1849, in astronomy, from sun (n.) + spot (n.). Earlier "a spot on the skin caused by exposure to the sun" (1818).