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hygroscopic

American  
[hahy-gruh-skop-ik] / ˌhaɪ grəˈskɒp ɪk /

adjective

  1. absorbing or attracting moisture from the air.


hygroscopic British  
/ ˌhaɪɡrəˈskɒpɪk /

adjective

  1. (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

hygroscopic Scientific  
/ hī′grə-skŏp′ĭk /
  1. Relating to a compound that easily absorbs moisture from the atmosphere.


Other Word Forms


Etymology

Origin of hygroscopic

First recorded in 1765–75; hygroscope + -ic


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The material is hygroscopic, meaning it readily absorbs water.

From Science Daily ● Sep. 21, 2026

The thing about sugar is that it’s hygroscopic, which means that it’s always going to draw moisture from its surroundings.

From Salon ● Sep. 25, 2025

The second is a desiccant-based system which uses hygroscopic materials to absorb moisture from the air, then release it through a heating process, he says.

From BBC ● May 27, 2024

Composite decking products, while not hygroscopic, expand and contract.

From Seattle Times ● Apr. 30, 2024

With this calorimeter it is desired to make studies regarding the moisture elimination, and consequently it is necessary to avoid the use of all material of a hygroscopic nature.

From Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man by Francis Gano Benedict

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