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

See Examples For:

magnetic bubble

It is hoped the project will help to picture the edge of the magnetic bubble for the first time, while creating data to improve predictions of space weather for future space missions.

From BBC ● Apr. 9, 2026

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 ● Oct. 31, 2025

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 ● Dec. 1, 2023

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 ● Feb. 16, 2023

“It is a mission to go beyond the boundaries of the heliosphere, the vast magnetic bubble that encases the entire solar system.”

From Scientific American ● Jan. 6, 2022