1
: a gelatinous colloidal extract of a red alga (as of the genera Gelidium, Gracilaria, and Eucheuma) used especially in culture media or as a gelling and stabilizing agent in foods
2
: a culture medium containing agar
Examples of agar in a Sentence
Recent Examples on the Web
The bad agar derailed their experiments for two months.
—
Sarah Zhang, The Atlantic, 25 Sep. 2024
Research, though, is limited as to the effects of agar in general, but especially, as an appetite suppressant and people should consult with a medical provider before use, especially as side effects and interactions are also limited.
—Trang Tran, Pharmd, Verywell Health, 18 Oct. 2024
The full pattern of agar failure that emerged is confusing, though.
—Sarah Zhang, The Atlantic, 25 Sep. 2024
What to watch in the market this week Surprising discoveries
Scientists depend on agar — a gelatin-like substance that comes from seaweed — to grow yeast.
—Morgan Haefner, Quartz, 5 Aug. 2024
See all Example Sentences for agar 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Sarah Zhang, The Atlantic, 25 Sep. 2024
Research, though, is limited as to the effects of agar in general, but especially, as an appetite suppressant and people should consult with a medical provider before use, especially as side effects and interactions are also limited.
—Trang Tran, Pharmd, Verywell Health, 18 Oct. 2024
The full pattern of agar failure that emerged is confusing, though.
—Sarah Zhang, The Atlantic, 25 Sep. 2024
What to watch in the market this week Surprising discoveries
Scientists depend on agar — a gelatin-like substance that comes from seaweed — to grow yeast.
—Morgan Haefner, Quartz, 5 Aug. 2024
See all Example Sentences for agar
Dictionary Entries Near agar
Cite this Entry
“Agar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/agar. Accessed 22 Nov. 2024.
Copy CitationKids Definition
agar
noun
variants
also agar-agar
ˈäg-ə-ˈräg-ər
1
: a jellylike substance obtained from a red alga and used especially in culture media or to give firmness to foods
2
: a culture medium containing agar
Medical Definition
agar
noun1
: a gelatinous colloidal extract of a red alga (as of the genera Gelidium, Gracilaria, and Eucheuma) used especially in culture media or as a gelling and stabilizing agent in foods
2
: a culture medium containing agar
Love words? Need even more definitions?
Merriam-Webster unabridged
Share