magnetism
/'mægnitizm/
Học thuậtThân thiện
Definition
- Noun:
- The branch of physics: This refers to the scientific study of magnetic fields, magnetic forces, and magnetic materials.
- A physical phenomenon: This is the property of attraction or repulsion exhibited by certain materials, most notably iron, and associated with moving electric charges and magnetic dipoles.
- A powerful personal quality: (Figurative) A compelling charm, appeal, or attractiveness that draws people in.
Usage and Examples
- As a scientific field:
- He is a professor who specializes in magnetism and electromagnetism.
- The discovery of magnetism was a crucial step in understanding physics.
- As a physical force:
- The magnetism of the Earth guides compass needles.
- This metal exhibits strong magnetism when placed near a coil of wire with an electric current.
- As a figurative quality:
- The actor's personal magnetism captivated the entire audience.
- She has a magnetism that makes people want to be around her.
Advanced Usage
- "Animal magnetism": An old term, historically referring to a supposed natural energetic force or a compelling personal charm.
- The politician was said to possess a kind of animal magnetism that drew crowds.
- Residual/Remanent magnetism: The magnetization left behind in a ferromagnetic material after an external magnetic field is removed.
- The remanent magnetism in the rock provided clues about the Earth's ancient magnetic field.
Variants and Related Words
- Magnetic (adj):
- Having the properties of a magnet; capable of being attracted by or acquiring the properties of a magnet. (Example: a magnetic material)
- Very attractive or alluring. (Example: a magnetic personality)
- Magnetize (verb): To give magnetic properties to something; to attract strongly.
- You can magnetize a steel needle by stroking it with a magnet.
- Magnet (noun): An object that produces a magnetic field.
- She used a magnet to pick up the pins.
Synonyms
- Attraction (for the physical and figurative senses).
- Allure, Charisma, Appeal (for the figurative sense).
- Lodestone (historical synonym for a natural magnet).
Related Phrases and Idioms
- Magnetic field: The region around a magnet where magnetic force is exerted.
- The Earth's magnetic field protects us from solar radiation.
- Magnetic pole: One of the two ends of a magnet where the magnetic force is strongest.
- The compass needle points toward the north magnetic pole.
- Magnetic resonance: A physical phenomenon used in imaging (e.g., MRI).
- Magnetic resonance imaging provides detailed pictures of the body's interior.
Noun
- the branch of science that studies magnetism
- attraction for iron; associated with electric currents as well as magnets; characterized by fields of force