magnetic bubble

noun

Computers.

1. a tiny mobile magnetized area within a magnetic material, the basis of one type of solid-state storage medium magneticbubblememory.

magnetic bubble

noun

1. physics a small round magnetic domain induced by a magnetic field in a thin film of magnetic material, used in certain types of computer memories

Word History and Origins

Origin of magnetic bubble¹

First recorded in 1965–70

Example Sentences

When they slammed into Earth’s magnetic bubble, the world was treated to iridescent displays of the northern and southern lights.

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While many solar storms send gusts of solar wind in other directions, those that hit the Earth can compress and distort our magnetosphere, the protective magnetic bubble surrounding the planet, says Miesch.

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Plenty gets captured by Jupiter’s colossal magnetic bubble, but some of it slams back into Io’s atmosphere, or into the other three moons’ gassy sheaths.

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Magnetic fields and energetic particles ejected from the sun reach Earth and are ensnared by our planet’s magnetic bubble.

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That ejection arrived at Earth sometime around Feb. 2, creating a geomagnetic storm in Earth’s magnetic bubble.

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