The process of practicing cannibalism; or in business, when a company's new product takes market share from its own existing products.
From 'cannibalize' (the verb) plus '-ation' (creating a noun of process or action). The business sense emerged in the 20th century as a metaphorical extension of the original meaning.
Cannibalization is everywhere in tech—Apple's iPad 'cannibalized' MacBook sales, which Apple didn't mind because they still got the profit, but competitors worry when they cannibalize their own products!
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