A large and dangerous pit viper native to Central and South America.
- ‘He also finds some of the rare and unique snakes in his journey, which includes eyelash viper, the fer de lance and the bushmaster.’
- ‘Some venom kills very rapidly, such as that of the golden fer-de-lance (Bothrops insularis) of Queimada Island, off the Brazilian coast.’
- ‘Later, there was a fight between a mongoose and a 6ft-long fer de lance.’
Late 19th century: from French, literally iron (head) of a lance.