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ferric

American  
[fer-ik] / ˈfɛr ɪk /

adjective

Chemistry.
  1. of or containing iron, especially in the trivalent state.


ferric British  
/ ˈfɛrɪk /

adjective

  1. of or containing iron in the trivalent state: ferric oxide ; designating an iron (III) compound

"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

ferric Scientific  
/ fĕrĭk /
  1. Containing iron, especially iron with a valence of 3.

  2. Compare ferrous


Etymology

Origin of ferric

1790–1800; < Latin ferr ( um ) iron + -ic

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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.

See Examples For:

Continued heating produces ferric hydroxysulfate, where OH replaces H2O in the mineral structure.

From Science Daily Mar. 10, 2026

As a precaution, however, we are monitoring the situation due to the use of ferric sulphate in some waste treatment works.

From BBC Sep. 7, 2021

In his soft, ferric voice, he said, “Oh.”

From The New Yorker Sep. 14, 2015

Cupric nitrate yields a bluish-turquoise color, while ferric nitrate yields a yellow-to-brown color.

From New York Times Jul. 1, 2015

Third, they form soluble, dark-blue or greenish-black compounds with ferric salts, the common inks.

From The Chemistry of Plant Life by Thatcher, Roscoe Wilfred

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