Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
pollutant | Yes | No | No | No |
nitrogen oxide | Yes | No | No | No |
pollutant (noun) | nitrogen oxide (noun) |
---|---|
waste matter that contaminates the water or air or soil | any of several oxides of nitrogen formed by the action of nitric acid on oxidizable materials; present in car exhausts |