nounany of various plants of the genus Tropaeolum, esp T. major, having round leaves and yellow, red, or orange trumpet-shaped spurred flowers: family Tropaeolaceae
Word origin
C17: from Latin: kind of cress, from
nāsus nose +
tortus twisted, from
torquēre to twist, distort; so called because the pungent smell causes one to wrinkle one'snose