magneticbubble

noun
UK /mæɡˈnɛtɪk ˈbʌbəl/
US /mæɡˈnɛtɪk ˈbʌbəl/

A magnetic bubble is a tiny round area in a special material that can hold a bit of magnetic information.

The old computer stored data using magnetic bubbles.


OTHER MEANINGS

2. A small region of magnetized material surrounded by opposite magnetization, used in bubble memory devices.

Engineers studied the magnetic bubble to improve memory chips.

3. A conceptual pocket of magnetic influence in space or plasma.

Scientists observed a magnetic bubble forming near the sun's surface.

4. A protective magnetic region around a planet or spacecraft.

Earth's magnetic bubble shields us from solar wind.