[nas.tur.tium] n [L, a cress] (1704): any of a genus (Tropaeolum of the family Tropaeolaceae, the nasturtium family) of herbs of Central and So. America with showy spurred flowers and pungent seeds; esp: either of two widely cultivated ornamentals (T. majus and T. minus)
NASTURTIUM
Meaning of NASTURTIUM in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012