magnetic bubble

American  

noun

Computers.

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

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magnetic bubble British  

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

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Etymology

Origin of magnetic bubble

First recorded in 1965–70

Example Sentences

Within this vast magnetic bubble, scientists have observed an electric field that stretches from the morning side of Earth to the evening side.

From Science Daily

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

From New York Times

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.

From National Geographic

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.

From New York Times

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

From New York Times