Webster’s Revised Unabridged Dictionary · 1913
Fer-de-lance
Fer′-de-lance′ (fâr′de·läNs′), n. [F., the iron of a lance, lance head.] (Zoöl.) A large, venomous serpent (Trigonocephalus lanceolatus) of Brazil and the West Indies. It is allied to the rattlesnake, but has no rattle.