English dictionary · noun

pyrite

The common mineral iron disulfide (FeS₂), of a pale brass-yellow color and brilliant metallic luster, crystallizing in the isometric system.

Meaning and definitions

1. The common mineral iron disulfide (FeS₂), of a pale brass-yellow color and brilliant metallic luster, crystallizing in the isometric system.
2. Any metallic-looking sulphide, such as the above, which is the most common.
3. (usually as a plural: pyrites) Any metal dichalcogenide that is isostructural to the common mineral.

Connected roots

• pyr-

  fire

Explore the word family

These words share a recorded root connection. A shared root is a learning clue; it does not establish every step in a word’s history.

• pyromaniac

  a person with a compulsive desire to set fire to things

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