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  1. pertaining to or containing hydrogen.

Origin of hydric1

First recorded in 1850–55; hydr-2 + -ic


  1. of, relating to, or adapted to a wet or moist environment.

Origin of hydric2

First recorded in 1925–30; hydr-1 + -ic


  1. a combining form of hydric1: hexahydric.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for hydric

Historical Examples

  • It floats on hydric sulphate, which only attacks it at a boiling heat.

    Poisons: Their Effects and Detection

    Alexander Wynter Blyth

  • Hydrogen sulphide, Dihydric sulphide, Hydric sulphide; Hydrosulphuric acid.

  • Hydric persulphide has a great resemblance to hydric peroxide in qualities.

  • The distillate is saturated with hydric sulphide, and any precipitate separated and examined.

  • The colour of the precipitate from hydric sulphide is either yellowish or black.

British Dictionary definitions for hydric


  1. of or containing hydrogen
  2. containing or using moisture
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 hydric


1796 as a term in chemistry, "of or containing hydrogen;" 1918 in ecology; see hydro- + -ic.

Online Etymology Dictionary, © 2010 Douglas Harper

hydric in Medicine


  1. Of or relating to hydrogen in a chemical grouping, as in a molecule.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

hydric in Science


  1. Relating or adapted to a wet but not flooded habitat. Cottonwoods, willows, and hemlocks are hydric plants. Compare mesic xeric.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.