• synonyms


noun Chemistry.
  1. a hydrate that contains three molecules of water, as potassium pyrophosphate, K4P2O7⋅3H2O.
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Origin of trihydrate

First recorded in 1850–55; tri- + hydrate
Related formstri·hy·drat·ed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for trihydrate

Historical Examples of trihydrate

  • At temperatures above 0, barium acetate can form two stable hydrates, a trihydrate and a monohydrate.

    The Phase Rule and Its Applications

    Alexander Findlay

  • The solubility of the trihydrate increases very rapidly with rise of temperature, and has been determined up to 26.1.

  • This is, therefore, the transition temperature for the trihydrate and monohydrate.

British Dictionary definitions for trihydrate


  1. chem a substance that contains three molecules of water
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Derived Formstrihydrated, adjective
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