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


Similar words

Narrower meaning words


  • Recorded since 1555, from Old French pyrite (12th century), from Latin pȳritēs, from Ancient Greek πυρίτης λίθος ("stone of fire, flint") (so called because it glitters), notably the first part: adjective πυρίτης, from πῦρ. Analyzable as pyr- + -ite

Modern English dictionary

Explore and search massive catalog of over 900,000 word meanings.

Word of the Day

Get a curated memorable word every day.

Challenge yourself

Level up your vocabulary by setting personal goals.

And much more

Try out Vedaist now.