ferromagnetic
UK[ˌfɛrəʊmæɡˈnɛtɪk]US[ˌfɛroʊmæɡˈnɛtɪk]
adj
Having a high susceptibility to magnetization, the strength of which depends on the applied magnetic field. This property is characteristic of iron, nickel, cobalt, and their alloys.
Morpheme Breakdown
ferro
magnetic
ferro
iron
magnetic
magnetic
Etymology
The term 'ferromagnetic' is a modern scientific compound, precisely constructed to describe a specific physical property. The first element, 'ferro-', directly invokes the Latin word for iron, 'ferrum', because iron is the most common and archetypal material exhibiting this strong magnetic behavior. The second element, 'magnetic', traces back to the ancient discovery of lodestone, a naturally magnetized mineral found in the region of Magnesia in Greece. Therefore, the word's literal logic is "having the magnetic quality of iron." It elegantly bridges the classical world's foundational materials—iron and the lodestone—to define a key concept in modern physics and materials science, specifically distinguishing this strong, persistent form of magnetism from weaker types like paramagnetism.
Analysis
Structure: ferro (iron) + magnetic (magnetic)
- ferro: From Latin 'ferrum', meaning "iron". In English, it functions as a combining form denoting a relation to iron.
- magnetic: From the English word 'magnetic', itself from Latin 'magneticus' (of a magnet), from Greek 'magnēs lithos' (Magnesian stone). It functions as the core adjective describing the property.
Examples
Iron, cobalt, and nickel are classic ferromagnetic materials.
The data was stored on a ferromagnetic disk inside the hard drive.
When heated above its Curie temperature, a ferromagnetic substance loses its spontaneous magnetization.