chemically combined with water in its molecular form.
(of paper pulp) beaten until gelatinous for making into water-resistant paper.
Origin of hydrated
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(of a compound) chemically bonded to water molecules
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