fer de lance
/ˌfeədəˈlɑːns/noun
(pl. fers de lance读音同或 fer de lances)
1- a large and dangerous pit viper native to Central and South America矛头蝮。
1.1
- Genus Bothrops, family Viperidae: several species, in particular B. atrox.矛头蝮属, 蝰科：数种, 尤指矛头蝮。
词源
late 19th cent.: from French, literally 'iron (head) of a lance'.