nitrone
/ˈnʌɪtrəʊn/Chemistry
noun
Any of a class of organic compounds having a dipolar molecule in which an oxygen atom is bonded to the nitrogen atom of a Schiff base (general formula RR′C=N+(R″)O−, where R, R′, R″ represent alkyl or other organic groups), some of which are used experimentally to react with and stabilize free radicals.
Origin
Early 20th century; earliest use found in Journal of the Chemical Society. From German Nitron from nitro- + -on, after Keton.