supermajor adjective 2noun 2forms 1 adjective2 •Very major; of great significance or importance. •An interval larger in size than a major interval but smaller than the next largest minor interval. noun2 •Any of the world's largest privately owned oil and gas companies.International oil companies operating in Africa range from the supermajors to majors, the still smaller independents, and finally the lean frontier specialists that operate in emerging producers. — 2014 •A very large soldier ant, bigger than a major. formssupermajors
