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English Affixes From A To Z: A One-Stop List Of Suffixes, Prefixes, and Combining FormsIn English, we love to make new words by adding all sorts of bits to the front and back of existing terms. These are called affixes, and they are added to the base or stem of a word. When attached to the end of word, the affix is called a suffix. And to the beginning? A prefix.
Origin of copper pyrites
First recorded in 1770–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for copper pyrites
Thallium is a widely-diffused metal, being found in many minerals, particularly in iron- and copper-pyrites and native sulphur.Cooley's Practical Receipts, Volume II|Arnold Cooley
British Dictionary definitions for copper pyrites
/ (ˈpaɪraɪts) /
(functioning as singular) another name for chalcopyrite
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