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pyrites

American  
[pahy-rahy-teez, puh-, pahy-rahyts] / paɪˈraɪ tiz, pə-, ˈpaɪ raɪts /

noun

Mineralogy.

plural

pyrites
  1. pyrite.

  2. marcasite.

  3. any of various other metallic sulfides, as of copper or tin.


pyrites British  
/ paɪˈraɪtiːz, ˈpaɪraɪts /

noun

  1. another name for pyrite

  2. any of a number of other disulphides of metals, esp of copper and tin

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of pyrites

1545–55; < Latin pyrītes (plural); see pyrite

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

They made a small amount of pyrites containing radioactive sulphur and mixed it with a coke-oven charge of coal.

From Time Magazine Archive

Sulphur from pyrites deposits was largely ignored, since brimstone is cheaper and easier to use.

From Time Magazine Archive

She exports timber, pulp, cellulose; iron ore, pyrites, copper, nickel, molybdenum; fish, whale oil�products which Germany can use.

From Time Magazine Archive

This kind of pyrites miners call cobaltum, if it be allowed to me to use our German name.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius

The formation is granite, and pyrites with the stone has helped to increase the cost of working.

From Early Days in North Queensland by Palmer, Edward

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