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colloidal

American  
[kuh-loid-l] / kəˈlɔɪd l /

adjective

Physical Chemistry.
  1. pertaining to or of the nature of a colloid.

    colloidal gold and silver.


colloidal British  
/ ˌkɒˈlɔɪdəl, ˌkɒlɔɪˈdælɪtɪ /

adjective

  1. of, denoting, or having the character of a colloid

"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

Other Word Forms

Etymology

Origin of colloidal

First recorded in 1860–65; colloid + -al 1

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 researchers introduced light sensitive molecules known as photoacids into a liquid containing colloidal particles.

From Science Daily Mar. 2, 2026

Physicists at Leipzig University have now created a type of neural network that works not with electricity but with so-called active colloidal particles.

From Science Daily Jan. 29, 2024

The research demonstrates the ability to engineer large, space-filling colloidal crystals using simple geometric considerations.

From Science Daily Jan. 18, 2024

Before Paltrow, libertarians gravitated toward colloidal silver in the early aughts in part thanks to a man named Stan Jones, who also turned blue from ingesting too much colloidal silver.

From Salon Jan. 7, 2024

He found that 1 atom-gramme of colloidal platinum gives a sensible catalytic effect when diluted with 70 million litres of water.

From The Mechanism of Life by Leduc, Stéphane

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