汉语翻译：
n. 蝰蛇, 毒蛇, 毒如蛇蝎的人, 阴险的人
【医】 蝰蛇英语解释：
名词 viper:

venomous Old World snakes characterized by hollow venom-conducting fangs in the upper jaw

例句：

He unwarily tread upon a viper asleep just before his feet.他不小心踩到正睡在他脚前的蛇上。

Be careful of that viper; he is dangerous.小心那个阴险的人，他很危险。

详细解释：
vi.per
n.（名词）
Any of several venomous Old World snakes of the family Viperidae, having a single pair of long, hollow fangs and a thick, heavy body.Also called adder 2
蝰蛇：东半球响尾蛇科毒蛇之一，有一对长且空心的毒牙和厚重的身体也作 adder2
A pit viper.
响尾蛇科毒蛇
A venomous or supposedly venomous snake.
毒蛇：有毒或被认是有毒的蛇
A person regarded as malicious or treacherous.
奸诈者：被认为是阴险或狡诈的人
来源：
Middle English vipere
中古英语 vipere
from Old French
源自 古法语
from Latin vopera [snake]
源自 拉丁语 vopera [蛇]
contraction of *vovipera
*vovipera的缩写
vovus [alive] * see g wei-
vovus [活着] *参见 g wei-
parere [to give birth] * see pera-
parere [出生] *参见 pera-

viper