adder

(noun)

noun

1. a person who adds numbers

Definition categories: person, calculator, computer, estimator, figurer, reckoner

2. a machine that adds numbers

Definition categories: man–made, calculator

3. small terrestrial viper common in northern Eurasia

Definition categories: animal, viper

Sentences with adder as a noun:

- They sought out cost adders with an eye toward eliminating them.