core
1
7.7
- noun
- /kɔr/
- Specialized
- Second, the entire electrode and lead wire were wound and mounted around the polypropylene core for durability.
- iron core
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Watch on YouTubeI have a winding and a core usually.
- I have a winding and a core usually.
Examples
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This inductor has a ferrite core that enhances its magnetic field when electricity flows through it.
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So they just use two bars here that have a metal core and then kind of a rubber outside.
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So that's the iron core of the magnet.
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Those armor-piercing rounds contain a magnetic steel core.
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An iron core with a forge-welded steel edge, so you get the flex and strength of the iron with the extreme cutting power of the steel.
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In fact, we should be able to pick up the magnetic fields from such high current pulse using an inductor with a ferrite core like this.
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The technician installed a new soft iron core inside the coil to improve its performance.
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To increase the coil's inductance, we need to replace the damaged core with a more efficient material.
Idioms
Compounds
12
3.5
A small group of people who are most important in a larger organization or activity
3
3.4
Strength in the muscles around your stomach and back that helps you stay steady and move
- Archaic
1
8.1
An old kind of computer storage that uses small magnetic rings to hold data
- Specialized
1
6.1
A tool that cuts out a round piece from hard materials like concrete or rock
- Specialized
1
7.7
A file that shows what is in a computer's memory when a program crashes to help find errors
- Archaic
1
8.3
A group of tiny magnetic rings used in old computers to store data
- Specialized
1
7.8
A hollow cutting cylinder used in a drill to remove a sample of rock or concrete
1
5.5
A very important thing someone remembers that shapes who they are and their choices
- Specialized
A machine that uses compressed air to pack sand into a box to make sand shapes for molds
- Specialized
A machine that makes sand shapes for metal casting by blowing sand into a mold
- Specialized
A machine in a metal workshop that forces sand into a mould to make cores
- Specialized
A small dangerous mass of radioactive metal used in early US tests that caused fatal accidents
Surface Forms
Etymology
The word core comes from Latin cor 'heart'; in coils and transformers the core is the metal bar in the middle that makes the magnetic field stronger, so it acts like the 'heart' of the device.