(名詞) 成立不到 10 年但價值卻超過 10 億美元的科技公司。

What's more, the number of $100 million plus funding rounds last year doubled compared to 2010, and one much-buzzed-about report shows there are more than two dozen tech startups valued at more than $1 billion. There's even a new catchphrase for such startups, which include Dropbox, Uber and Snapchat: "unicorns," denoting both their rareness and their dazzling promise.
—Peter Delevett, "Venture capital looks to be in a full-blown recovery — but is it too much, too soon?," San Jose Mercury News, February 7, 2014

Forget the $1 billion "unicorns" out there — the last year has been all about the rise of the $10 billion companies — both Dropbox and Chinese mobile hardware company Xiaomi both had rounds at $10 billion valuations, raising hundreds of millions of dollars.
—Lauren Hockenson, "Airbnb reportedly set to raise up to $500M at $10B valuation," Gigaom, March 20, 2014