Definition of imidazole in English:

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Pronunciation: /ˌɪmɪˈdeɪzəʊl/
Pronunciation: /ɪˈmɪdəzəʊl/


[mass noun] Chemistry
A colourless crystalline compound with mildly basic properties, present as a substituent in the amino acid histidine.
  • a heterocyclic compound; chemical formula: C3H4N2.
Example sentences
  • The quenching effect is attributed to the presence of proximal imidazole and pyrrole groups in their three-dimensional structures.
  • Conventional modeling of the amino acid side chains was used, that is, the zinc ligands aspartate, cysteinate, and histidine were modeled by acetate, methylthiolate, and imidazole, respectively.
  • In contrast, the lipid portion of the cuticular membrane, the cuticle proper and the matrix of the cuticular layer react with imidazole.


Late 19th century: from imide + azo- + -ole.

For editors and proofreaders

Line breaks: imid|azole

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