agar
1 Americannoun
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Also called Japanese isinglass. Also called Japanese gelatin. Also called Chinese gelatin. Also called Chinese isinglass. Also agar-agar. a gelatinlike product of certain seaweeds, used for solidifying certain culture media, as a thickening agent for ice cream and other foods, as a substitute for gelatin, in adhesives, as an emulsifier, etc.
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Biology. a culture medium having an agar base.
noun
noun
Etymology
Origin of agar
First recorded in 1885–90, agar is from the Malay word agaragar seaweed from which a gelatin is rendered, or the gelatin itself
Vocabulary lists containing agar
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.
As a result, Yingchao has been visiting the Agar Children's Centre's stay-and-play sessions with her now three-month-old baby.
From BBC • Mar. 19, 2026
"I just walked down the wicket to celebrate," says Agar.
From BBC • Nov. 18, 2025
After two games in the Sheffield Shield, Agar came within a whisker of making his Australia bow on an awful tour of India.
From BBC • Nov. 18, 2025
"It was huge because it was so unexpected," Agar says.
From BBC • Nov. 18, 2025
In the evening, Mother called Dr. Agar, our family doctor.
From "The Lions of Little Rock" by Kristin Levine
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.