Oxford Dictionary English heavy industry nounnoun BrE BrE//ˌhevi ˈɪndəstri// ; NAmE NAmE//ˌhevi ˈɪndəstri// [uncountable, countable] Manufacturing Add to my wordlistjump to other resultsindustry that uses large machinery to produce metal, coal, vehicles, etc. compare light industry See related entries: ManufacturingSee heavy industry in the Oxford Advanced American DictionaryCheck pronunciation: heavy industry oxfordlearnersdictionaries.com