| Answer | Crossword Clue |
|---|---|
| HISS | Vocalize like a viper |
| FANGED | Like a viper |
| viperish | like a viper |
| SLITHER | Move like a viper |
| viperishly | VIPERISH, like a viper |
| viperiform | shaped like a snake or viper |
| cerastes | any of several small vipers of the genus Cerastes, including the horned viper, that have a sideways looping motion like that of a sidewinder and inhabit deserts of northern Africa and southwestern Asia |
