« Back to Glossary IndexWatercress Definition: Aquatic plant with small, round sharply flavoured leaves used as a garnish and in salads. Related Articles: Chicken with Shallot & Mustard Herb SauceBaked Trout with Fennel & OrangeMackerel with Horseradish Crushed PotatoesSeared Steak Salad If you love it, please share...