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A major equity interest of more than half the shares in a company.
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majority interest UK US noun [C or U]
► FINANCE, STOCK MARKET a situation in which one person or organization owns more shares in a company than any other shareholder, and enough to be in control of the company: acquire/buy/hold a majority interest in sth »
The consortium has just acquired a majority interest in a healthcare services group.
Financial and business terms. 2012.