Definition of leek noun from the Oxford Advanced Learner's Dictionary



BrE BrE//liːk//
; NAmE NAmE//liːk//
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a vegetable like a long onion with many layers of wide flat leaves that are white at the bottom and green at the top. Leeks are eaten cooked. The leek is a national symbol of Wales. See related entries: Vegetables Word OriginOld English lēac, of Germanic origin; related to Dutch look and German Lauch.
See the Oxford Advanced American Dictionary entry: leek