What is "nitroimidazole"

n. (context medicine English) Any of a family of antibiotics composed of imidazole heterocycles with a nitro group; often used to combat anaerobic infections

5-Nitroimidazole is an organic compound with the formula ONCHNH. The nitro group at position 5 on the imidazole ring is the most common positional isomer. The term nitroimidazole also refers to a class of antibiotics that share similar chemical structures.