From Longman Dictionary of Contemporary Englishgreen pepperˌgreen ˈpepper noun [countable] DFFHBPa hollow green vegetable that you can cook or eat raw in salads → capsicum
Examples from the Corpus
green pepper• Serve with a green pepper and cucumber salad.• Heat the oil in a large saucepan, add the onion, garlic and green pepper and cook until soft. 2.• Likewise for a very nice green pepper plant.• Add corn, onion, green pepper, salt and pepper. 