magnetosphere
noun
mag·ne·to·sphere
mag-ˈnē-tə-ˌsfir 
-ˈne-
: a region of space surrounding a celestial object (such as a planet or star) that is dominated by the object's magnetic field so that charged particles are trapped in it
Examples of magnetosphere in a Sentence
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Earth’s magnetic field may be nearly as old as the Earth itself – and […]
Hard Science
The magnetosphere waxes and wanes every 200 million years
Yes, the magnetosphere is weakening.
—
Big Think, 24 June 2024
The historic storm—a major disturbance in the magnetosphere—led to reports of power grid irregularities and disruptions to high-frequency communications, GPS and satellite navigation.
—Will Sullivan, Smithsonian Magazine, 13 May 2024
The International Space Station lies within Earth's magnetosphere, so its astronauts should be mostly protected, Steenburgh says.
—Geoff Brumfiel, NPR, 10 May 2024
The presence of a magnetosphere implies that part of Mercury’s core is still churning.
—Shi En Kim, Smithsonian Magazine, 16 Apr. 2024
See all Example Sentences for magnetosphere 
Big Think, 24 June 2024
The historic storm—a major disturbance in the magnetosphere—led to reports of power grid irregularities and disruptions to high-frequency communications, GPS and satellite navigation.
—Will Sullivan, Smithsonian Magazine, 13 May 2024
The International Space Station lies within Earth's magnetosphere, so its astronauts should be mostly protected, Steenburgh says.
—Geoff Brumfiel, NPR, 10 May 2024
The presence of a magnetosphere implies that part of Mercury’s core is still churning.
—Shi En Kim, Smithsonian Magazine, 16 Apr. 2024
See all Example Sentences for magnetosphere
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'magnetosphere.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Magnetosphere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnetosphere. Accessed 15 Jul. 2024.
Copy CitationKids Definition
magnetosphere
noun
mag·ne·to·sphere
mag-ˈnēt-ə-ˌsfi(ə)r
-ˈnet-
: a region of space around an object (as a planet or star) that is dominated by the object's magnetic field
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