n.
Any of several venomous snakes of Africa, Asia, and Europe, such as the small cobra (Naja haje) or the horned viper (Cerastes cornutus).
[Middle English aspis, from Latin, from Greek.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.