From Longman Business Dictionarycapital stockˈcapital stock [uncountable] American EnglishFINANCE the amount of capital a company has from investors who have bought sharesSYNSHARE CAPITALFigures show a capital stock that has increased gently but persistently. → stockcapital stockˈcapital ˌstock [countable, uncountable]ECONOMICS the amount of money invested by a country, company etc at any one timeBetween 1955 and 1970 the capital stock in US manufacturing rose by 74%. → stock