broccolini UK /bɹɒ.kəˈliːni/US /bɹɑ.kəˈliːni/ noun1 •A green vegetable similar to broccoli but with smaller florets and long thin stalks; a cross between broccoli and kai-lan (Chinese broccoli).10 P.M. (Bravo) TOP CHEF C. J. is gone after he served what Tom Colicchio called the worst dish in the three seasons of the show, an admittedly gross-looking broccolini. — 2007 formsbroccolinis