vi.per

viper的音标和读音：
DJ音标发音： [ˈvaipə]
KK音标发音： [ˈvaɪpɚ]

viper的词性：
n.（名词）

1. 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

2. A pit viper.
响尾蛇科毒蛇

3. A venomous or supposedly venomous snake.
毒蛇：有毒或被认是有毒的蛇

4. A person regarded as malicious or treacherous.
奸诈者：被认为是阴险或狡诈的人

viper的词源：

5. Middle English vipere
中古英语 vipere

6. from Old French
源自 古法语

7. from Latin v^opera [snake]
源自 拉丁语 v^opera [蛇]

8. contraction of *v^ovipera
*v^ovipera的缩写

9. v^ovus [alive] * see g ^wei-
v^ovus [活着] *参见 g ^wei-

10. parere [to give birth] * see pera- ¹
parere [出生] *参见 pera- ¹