Dictionary
vi•per•ous
Pronunciation: (vī'pur-us), [key]—
adj.
1. of the nature of or resembling a viper:
a viperous movement.
2. of or pertaining to vipers.
3. characteristic of vipers.
4. venomous.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.