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An acidic crystalline compound whose molecule is a five-membered ring of one carbon and four nitrogen atoms.
- ‘We have therefore decided to study the binding between the parent tetrazole and a model benzamidine base.’
- ‘The present invention relates to a method for preparing substituted tetrazoles, compounds obtained according to this method, new reactants and new tetrazole derivatives.’
- ‘Various new tetrazoles were tested for their anti-inflammatory activity against carrageenin-induced paw oedema in albino rats.’
Late 19th century: from tetra- ‘four’ + azo- + -ole.
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The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.