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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.

Colloidal silver can make other medications, including antibiotics, less effective.

From Washington Post • Mar. 5, 2020

Colloidal silver is made up of silver particles suspended in a liquid, and has often has often been falsely peddled as a miracle solution to boost the immune system and cure diseases.

From Washington Times • Feb. 14, 2020

Colloidal silver is a popular new-age health product, touted as a miraculous antibacterial and antimicrobial agent that is dabbed on the skin.

From The Guardian • May 2, 2019

Colloidal particles are either very large molecules or aggregates of smaller species that usually are big enough to scatter light.

From Textbooks • Feb. 14, 2019

Colloidal particles are, however, generally visible under the Zigmondy "ultramicroscope."

From The Chemistry of Plant Life by Thatcher, Roscoe Wilfred

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