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

1790–1800; < Latin ferr(um) iron + -ic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for ferric


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

C18: from Latin ferrum iron
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

Word Origin and History for ferric


1799, from Latin ferrum "iron" (see ferro-) + -ic. Of iron, especially with a valence of three.

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Online Etymology Dictionary, © 2010 Douglas Harper

ferric in Medicine


  1. Of, relating to, or containing iron, especially with a valence of 3 or a valence higher than in a corresponding ferrous compound.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

ferric in Science


  1. Containing iron, especially iron with a valence of 3. Compare ferrous.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.