colloidal

[ kuh-loid-l ]

adjectivePhysical Chemistry.

pertaining to or of the nature of a colloid: colloidal gold and silver.

Origin of colloidal

First recorded in 1860–65; colloid + -al¹

Other words from colloidal

col·loi·dal·i·ty [kol-oi-dal-i-tee], /ˌkɒl ɔɪˈdæl ɪ ti/, noun
col·loi·dal·ly, adverb
non·col·loi·dal, adjective
sem·i·col·loi·dal, adjective

Words Nearby colloidal

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use colloidal in a sentence

Scammers are peddling fake remedies ranging from colloidal silver to cow manure.
COVID-19 Scams Are Everywhere Right Now. Here's How to Protect Yourself | Patrick Lucas Austin | March 19, 2020 | Time
Graham considered "colloidal silicic acid a liquid miscible with water in all proportions."
The Elements of Qualitative Chemical Analysis, vol. 1, parts 1 and 2. | Julius Stieglitz
colloidal platinum in water is negative, in a mixture of water and alcohol, positive.
The Elements of Qualitative Chemical Analysis, vol. 1, parts 1 and 2. | Julius Stieglitz
colloidal preparations of platinum, silver and many other metals may be prepared in the same way.
The Elements of Qualitative Chemical Analysis, vol. 1, parts 1 and 2. | Julius Stieglitz
Other varieties of heterogeneous colloidal mixtures are tabulated by Wo.
The Elements of Qualitative Chemical Analysis, vol. 1, parts 1 and 2. | Julius Stieglitz

Thus, colloidal As2S3, carrying a negative charge, is precipitated by the positive ions of added electrolytes.
The Elements of Qualitative Chemical Analysis, vol. 1, parts 1 and 2. | Julius Stieglitz

British Dictionary definitions for colloidal

colloidal

/ (ˌkɒˈlɔɪdəl) /

adjective

of, denoting, or having the character of a colloid

Derived forms of colloidal

colloidality (ˌkɒlɔɪˈdælɪtɪ), 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

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