from the GNU version of the Collaborative International Dictionary of English
- n. A serpent whose bite was fabled to produce intense thirst.
- n. A genus of harmless colubrine snakes.
from The Century Dictionary and Cyclopedia
- n. A serpent whose bite was said to produce a mortal thirst.
- n. [capitalized] [NL.] The typical genus of serpents of the family Dipsadidæ. D. dendrophila is East Indian, D. fasciata West African.
- n. [capitalized] [NL.] A genus of fresh-water bivalves, of the family Unionidæ, or river-mussels.
- n. [capitalized] [NL.] A genus of butterflies, of the family Lycænidæ.
Sorry, no etymologies found.
The dipsas is a kind of asp, called in Latin situla because anyone bitten by it dies of thirst.
The scytalas was like "a staff;" the acontias, like "a javelin;" the dipsas was a thirsty snake.
Book 12, 4:32: The dipsas is such a rare snake that its trampled without being seen.
"What's a dipsas?" she asked Chem, who was now picking her way forward again.
This bite of the dipsas does seem to fit the description.
This reptile is probably the torrida dipsas of antiquity.
And was thy leader in the great and terrible wilderness, wherein there was the serpent burning with his breath, and the scorpion and the dipsas, and no waters at all: who brought forth streams out of the hardest rock,
The first bitten was the standard-bearer Aulus, by a dipsas, which afflicted him with intolerable thirst; next Sabellus by a seps, a minute creature whose bite was followed by an instantaneous corruption of the whole body;  then