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agar.

A gelatinous substance obtained from red algae, especially Gracilaria species, used as a bacterial culture medium, in electrophoresis and as a food additive.

4 characters2 syllables approx.English language

Meaning & usage

noun/ˈeɪ.ɡə/Received-Pronunciation/ˈeɪ.ɡɑː/Received-Pronunciation/ˈɑˌɡɑɹ/General-American/ˈæ.ɡəɹ/General-American
  1. A gelatinous substance obtained from red algae, especially Gracilaria species, used as a bacterial culture medium, in electrophoresis and as a food additive.

    countable · uncountable
  2. A culture medium based on this material.

    countable · uncountable
  3. A pattern that is periodic in both space and time covering the whole plane.

    countable · uncountable
Where this word comes from

From Malay agar (“jelly”) or agar-agar.

noun/ˈeɪ.ɡə/Received-Pronunciation/ˈeɪ.ɡɑː/Received-Pronunciation/ˈɑˌɡɑɹ/General-American/ˈæ.ɡəɹ/General-American
  1. agarwood

    countable · uncountable
Where this word comes from

Possibly from Hindi अगर (agar), from Sanskrit अगरु (agaru).

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.