viper

Rattlesnakes belong to the viper family.

响尾属于科。

viper's bugloss (=blue weed)

【植】蓝蓟

He unwarily treads upon a viper asleep just before his feet.

他不小心踩到正睡在他脚前。

Any of several venomous snakes of the genus Cerastes, such as the horned viper, having hornlike projections over each eye.

冠雉一属（形似火鸡一种树栖鸟，常被用于比赛和食用）。