nasturtium officinale   (TTS Sound)

The noun nasturtium officinale has 1 sense

• common watercress, Rorippa nasturtium-aquaticum, Nasturtium officinale -- (perennial Eurasian cress growing chiefly in springs or running water having fleshy pungent leaves used in salads or as a potherb or garnish; introduced in North America and elsewhere)