- absorbing or attracting moisture from the air.
Origin of hygroscopic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hygroscopic
The phloroglucide is hygroscopic, and must be weighed out of contact with the air.
The hygroscopic moisture of the product is lowered from 10-11 p.ct.
The author has used hydroscopic in place of hygroscopic throughout.Jaros Hygienic Wear
This combination is hygroscopic, anodyne and antiseptic and is easily applied.Lameness of the Horse
John Victor Lacroix
When fresh they contain considerable water, and at all times are hygroscopic.
- (of a substance) tending to absorb water from the air
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 hygroscopic
Online Etymology Dictionary, © 2010 Douglas Harper
- Readily absorbing moisture, as from the atmosphere.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Relating to a compound that easily absorbs moisture from the atmosphere.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.