The Collaborative International Dictionary
Boomslange
Boomslange \Boom"slang*e\, n. [D. boom tree + slang snake.] (Zo["o]l.) A large South African tree snake ( Bucephalus Capensis). Although considered venomous by natives, it has no poison fangs.
Wiktionary
boomslange
n. (dated form of boomslang English)