sunspot

noun

sun·​spot ˈsən-ˌspät 

: any of the dark spots that appear at times on the sun's surface and are usually visible only through a telescope

Examples of sunspot in a Sentence

Recent Examples on the Web

While that's only about one-millionth the energy of a large solar flare, these mini-explosions are seen as indicators of magnetic complexity in a sunspot. —Daisy Dobrijevic, Space.com, 11 July 2025

The publication studies sunspot cycles, solar activity, tidal forces, the position of the planets and the reversal of winds in the stratosphere over the equator. —Olivia Rose, AZCentral.com, 9 July 2025

The Farmer's Almanac primarily uses a secretive formula that considers astronomical factors, like sunspot activity, moon phases, planetary positions and tidal forces, along with historical weather patterns. —Chris McKeown, The Enquirer, 2 July 2025

Solar maximum is expected in July 2025, with a peak of 115 sunspots, according to NOAA. —Joyce Orlando, Nashville Tennessean, 25 June 2025

Word History

First Known Use

1676, in the meaning defined above

Rhymes for sunspot

• allot
• barat
• begot
• besought
• bethought
• bloodshot
• boycott
• buckshot
• crackpot
• croat
• culottes
• dashpot

Kids Definition

sunspot

noun

sun·​spot -ˌspät 

: one of the dark spots that appear from time to time on the sun's surface and are usually visible only through a telescope