permanent magnet
1
3.8
- noun
- /ˈpɜrmənənt ˈmæɡnɪt/
- Specialized
:
imán permanente
- Purchasing permanent magnets for your home, crafts, and electronics projects can help you create top-quality items.
- permanent magnet motor
- permanent magnet generator
- brushless permanent magnet
It was difficult to engineer and machine permanent magnets that would give a uniform magnetic field.
- It was difficult to engineer and machine permanent magnets that would give a uniform magnetic field.
Examples
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Both reactors feature a permanent magnet ECR plasma source and multipolar confinement.
Academic text (1997) -
Hasenstein's ground-based experiments indicate that even a small permanent magnet can provide enough guidance for a growing plant on board a spaceship.
Academic text (1998) -
One of the best uses of these permanent magnets is to facilitate education.
Blog text (22) -
The permanent magnet brake provides fast response time and low inertia.
Academic text (2003) -
Hybrids use a permanent magnet direct-drive motor linked to a variable speed controller.
Academic text (2009) -
So these, these large pieces of iron in the front here are permanent magnets and they're set up so that they're, the gap is the, the disc is in the gap.
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The brushless permanent magnet machine uses permanent magnets on its rotor and electrical commutation.
Academic text (2003) -
In one scenario, tethered buoys bobbing in the waves would move large wire coils past permanent magnets.
Academic text (2006) -
Invented at Lawrence Livermore National Laboratory in California, Inductrack relies on permanent magnets arranged in a Halbach array on the underside of a maglev vehicle.
Academic text (2002) -
Most everyday magnets, including those that hold notes on the fridge, are permanent magnets.
Synonyms
180
1.8
A piece of metal that attracts iron or steel
An object that keeps the power to attract iron without electricity
A metal like iron that becomes strongly magnetic and keeps its magnetism
How Permanent
- Specialized
1
3.8
- Specialized
8
3.9
Surface Forms
Morphology
The meaning is directly compositional: 'permanent' (lasting) modifies 'magnet' (an object that attracts metals) to denote a magnet that retains its properties. This straightforward adjective+noun combination follows common cross-linguistic patterns and would be immediately understandable to a B1 learner who knows both words.
Etymology
Permanent magnet comes from the time when people needed a name for magnets that keep their power on their own, so they used the word permanent to show it stays magnetic without help. So, permanent magnet means 'a magnet that keeps its magnetism without electricity'.