From Longman Dictionary of Contemporary Englishheavy industryˌheavy ˈindustry noun [uncountable] industry that produces large goods such as cars and machines, or materials such as coal, steel, or chemicals → light industry
Examples from the Corpus
heavy industry• Even more striking was the upsurge in heavy industry, and for this the State itself was primarily responsible.• The latter, involving heavy industry, was made possible by the building of the railways.• The result - heavy industry and low value added production kept going long past its time, ineffectually, by subsidy.• For example, the predominantly agricultural South was now entirely separated from the heavy industry of the North.From Longman Business Dictionaryheavy industryˌheavy ˈindustry [countable, uncountable]MANUFACTURINGCOMMERCE an industry involving heavy machinery, large factories etc, or these industries considered as a wholeheavy industry, including coal mining, mechanical engineering and ship building → industry 