Definition of "watercress" []

• A pungent perennial Eurasian herb (Rorippa nasturtium-aquaticum) of the mustard family, growing in freshwater ponds and streams and used in salads and as a garnish. (noun)
• Any of several related aquatic plants. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "In northern and central Mexico, a licuado of watercress is taken as a remedy for renal and pulmonary problems."
• ""You know that innocent and very acceptable plant called the watercress, which is sold in great quantities for table use in London, New York, and other English and American cities."
• "The watercress is a great staple, because it lasts for so many months."