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agar Syllabification: a·gar
Pronunciation: /ˈäˌɡär/
(also agar-agarˈäɡär ˈäˌɡärˈāɡär ˈāˌɡär)

Definition of agar in English:


A gelatinous substance obtained from various kinds of red seaweed and used in biological culture media and as a thickener in foods.
Example sentences
  • The gelatinizing agent was a Japanese seaweed called agar-agar, commonly found in organic stores.
  • To study these bacteria he grew them in glass Petri dishes on a substance called agar, in his laboratory.
  • Precipitation of a peptide in the top agar with subsequent release of amino acids can also lead to confounding results.


Early 19th century: from Malay.

Definition of agar in:
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