Lewis Short
dipsas (noun F) = διψάς:
* A kind of serpent whose bite causes violent thirst, the Coluber Vipera, Linn.; Plin. 23, 8, 80, § 152; Mart. 3, 44, 7; Luc. 9, 610; 718; Sil. 3, 313; Vulg. Deut. 8, 15.
Charlton T. Lewis, Charles Short, A Latin Dictionary