adder
英['?d?]
美['?d?]
- n. 蝰蛇（歐洲產的小毒蛇）；加算器；豬鼻蛇（北美產無毒的）
英英釋意
- 1. a person who adds numbers
- 2. a machine that adds numbers
- 3. small terrestrial viper common in northern Eurasia
