lodestone

/'loudstoun/ Cách viết khác : (lodestone) /'loudstoun/

Thân thiện

A student uses a lodestone to pick up iron filings.

Definition

1. Noun:
   • A naturally magnetized piece of the mineral magnetite: A lodestone is a type of permanent magnet found in nature. It possesses polarity (a north and south pole) and has the inherent power to attract iron and other ferromagnetic materials, as well as to be attracted to other magnets.

Examples of Usage

• Noun:
  • Ancient mariners used a lodestone to navigate.
  • The scientist demonstrated how the lodestone could attract iron filings.
  • A piece of lodestone is a natural permanent magnet.

Advanced Usage

• Figurative use as an "attractor" or "center of attention": While less common, "lodestone" can be used metaphorically to describe something that powerfully attracts people or interest.
  • The charismatic leader became a lodestone for political dissent.
  • The new art gallery is a cultural lodestone for the city.

Variants and Related Words

• Loadstone: An alternative, less common spelling of "lodestone."
• Magnetite (n): The mineral (iron oxide, Fe₃O₄) of which a lodestone is composed. Not all magnetite is magnetized as a lodestone.
• Magnet (n): The general term for any object that produces a magnetic field. A lodestone is a specific type of natural magnet.

Synonyms

• Natural magnet
• Magnet (in the specific context of a natural, mineral-based magnet)

Idioms and Phrases

• (To be) a lodestone for something: To be something that strongly attracts a particular thing (e.g., trouble, attention, talent).
  • His controversial statements made him a lodestone for media scrutiny.

Học thuật

Noun

1. a permanent magnet consisting of magnetite that possess polarity and has the power to attract as well as to be attracted magnetically

Từ đồng nghĩa

• loadstone