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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.

Ferric hydroxysulfate is much rarer and occurs only in a few small locations.

From Science Daily • Mar. 10, 2026

“They’re an important part of our culture and I think it’s fine if you keep precautions,” said Professor of Laboratory Medicine and Microbiology Dr. Ferric Fang.

From Seattle Times • Jul. 9, 2021

Another author of the study, Dr. Ferric Fang, a microbiology professor and journal editor at the University of Washington, said improper images began turning up in the 1990s.

From New York Times • Mar. 8, 2017

Ferric Fang of the University of Washington, Seattle; Joan Bennett of Rutgers University; and Arturo Casadevall of Albert Einstein College of Medicine combed through misconduct reports on 228 people released by the U.S.

From Science Magazine • Jan. 22, 2013

Ferric salts are thereby quickly reduced to ferrous; in hot solutions nitric acid is decomposed.

From A Text-book of Assaying: For the Use of Those Connected with Mines. by Beringer, Cornelius

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