Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


 (pī-rī′tēz, pī′rīts′)
n. pl. pyrites
Any of various natural metallic sulfide minerals, especially of iron.

[Latin pyrītēs, from Greek purītēs (lithos), fire (stone), flint, from pūr, fire; see paəwr̥ in Indo-European roots.]


(paɪˈraɪtiːz; in combination ˈpaɪraɪts )
n, pl -tes
1. (Minerals) another name for pyrite
2. (Minerals) any of a number of other disulphides of metals, esp of copper and tin


(paɪˈraɪ tiz, pə-, ˈpaɪ raɪts)

n., pl. -tes.
1. any of various metallic sulfides, as of tin.
2. pyrite.
[1545–55; < Latin pyrītes (pl.); see pyrite]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pyrites - any of various metallic-looking sulfides (of which pyrite is the commonest)
sulfide, sulphide - a compound of sulphur and some other element that is more electropositive


[paɪˈraɪtiːz] N (pyrites (pl)) → pirita f
References in classic literature ?
My host says that the two principal improvements introduced by foreigners have been, first, reducing by previous roasting the copper pyrites -- which, being the common ore in Cornwall, the English miners were astounded on their arrival to find thrown away as useless: secondly, stamping and washing the scoriae from the old furnaces -- by which process particles of metal are recovered in abundance.
Straight from the ocean's depths rose towering cliffs, shot with brown and blues and greens--withered moss and lichen and the verdigris of copper, and everywhere the rusty ocher of iron pyrites. The cliff-tops, though ragged, were of such uniform height as to suggest the boundaries of a great plateau, and now and again we caught glimpses of verdure topping the rocky escarpment, as though bush or jungle-land had pushed outward from a lush vegetation farther inland to signal to an unseeing world that Caprona lived and joyed in life beyond her austere and repellent coast.
Natural resources: copper, pyrites, asbestos, gypsum, timber, salt, marble, clay earth pigment.
* Major mineral resources: Diamonds, uranium, copper, lead, zinc, magnesium, cadmium, arsenic, pyrites, silver, gold, lithum, dimension stones (granite, marble, blue sodalite) and many semi-precious stones
The relatively poor correlation between As and total S (r = -0.08; Table 1) supports the 1997 hypothesis that pyrites are not the principal source of AS in Bangladesh's groundwater (8,9).
He will be aimed at a one star event this year and Fiona has two other rides - the 17hh roan grey Crown Obsidian and Crown Pyrites, both of whom came from Joanna Widen at the National Foaling Bank.
It was closer in the Marsh UK mares' race, with Tabitha Cave conjuring a better last-fence jump from Blazing Miracle and gaining a head verdict over Iron Pyrites.
In China, medium- and high-sulphur coals (sulphur content more than 2%) account for 11% of total annual coal production, and in about 65% of such coals the sulphur is contained in pyrites. Mr Zhou says that most of the ash content and 50-70% of the pyrite can be removed by mechanical separation.
3.4-billion-year-old biogenic pyrites from Barberton, South Africa: sulfur isotope evidence.
9 Bifaces et fragments 12 3 8 Percuteur 1 Pointes de projectile 1 2 1 Lame de cache 1 5 fragments Grattoirs sur eclats 5 11 1 Grattoirs bifaciaux 3 1 Pieces esquillees 2 1 4 Eclats retouches 10 3 Eclats utilises 32 2 10 Pierre de briquet 1 Polissoir Gre s fin Poids de filet 1 Pyrites de fer 3 Poterie Vinette 1 4 Boule d'ocre rouge 1 Total 3460 16 36 2 56 [Part 2 of 2] Tableau 3: Les artefacts decouverts dans la structure n[degrees] 10, site Lambert (CeEu-12)
A natural salesman with a winning personality, he's been stuck in the minor leagues because he's incapable of distinguishing gold from pyrites. His failed marriage to Serena (Kathleen Quinlan) and stalled relationship with his son, Nick (Zane Carney), are also the result of indiscriminate values.
The forty or so essays are uneven in length and quality; although there are some glints of genuine gold here and there, there is an overwhelming weight of pyrites dross to be silted through by the reader.