The Collaborative International Dictionary
Trigonocephalus lanceolatus
Fer-de-lance \Fer`-de-lance"\, n. [F., the iron of a lance, lance head.] (Zo["o]l.) A large, venomous serpent ( Trigonocephalus lanceolatus) of Brazil and the West Indies. It is allied to the rattlesnake, but has no rattle.