Definition of "isocyanate" [isocyanate]

• The univalent radical -N=C=O (tautomeric with cyanate), and any of its hydrocarbyl derivatives R-N=C=O (noun)

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• "The blast involved the chemical methyl isocyanate, which is used to produce pesticides."
• "An explosion in the Union Carbide chemical plant in Bhopal, India, released a deadly gas called methyl isocyanate, which is used to make pesticides."
• "Fire crews identified one chemical involved as isocyanate, which is commonly used in vehicle paint and can cause asthma."