Origin of hygroscopic

First recorded in 1765–75; hygroscope + -ic
Related formshy·gro·scop·i·cal·ly, adverbhy·gro·sco·pic·i·ty [hahy-gruh-skoh-pis-i-tee] /ˌhaɪ grə skoʊˈpɪs ɪ ti/, nounnon·hy·gro·scop·ic, adjectivenon·hy·gro·scop·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for hygroscopic

Historical Examples of hygroscopic

British Dictionary definitions for hygroscopic


  1. (of a substance) tending to absorb water from the air
Derived Formshygroscopically, adverbhygroscopicity (ˌhaɪɡrəskəʊˈpɪsɪtɪ), noun
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

1775, from hygroscope (1660s), from hygro- + -scope.

Online Etymology Dictionary, © 2010 Douglas Harper

hygroscopic in Medicine


  1. 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.

hygroscopic in Science


  1. 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.