mizuna definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a Japanese mustard plant whose leaves have a mildly tangy flavor and are used in salads
mizuna definition by American Heritage Dictionary
An edible plant (Brassica rapa var. nipposinica) in the mustard family, having dark green, glossy, feathery leaves and white stems.
Origin: Japanese : mizu, water + na, mustard plant.