a substance that forms a colloid when combined with water.

Origin of hydrocolloid

First recorded in 1925–30; hydro-1 + colloid
Related formshy·dro·col·loi·dal [hahy-droh-kuh-loid-l] /ˌhaɪ droʊ kəˈlɔɪd l/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

hydrocolloid in Medicine




A substance that forms a gel with water.
Such a substance used to take dental impressions, especially one derived from marine kelp.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.