/na sterr"sheuhm, neuh-/ , n.
any plant of the genus Tropaeolum, cultivated for its showy, usually orange, red, or yellow flowers or for its fruit, which is pickled and used like capers.
[ 1560-70; nasturtium, nasturcium a kind of cress, taken to mean, perh. by folk etym., something that wrings the nose (referring to its acrid smell). See NOSE, TORT, -IUM ]