adder
/ˈædər/
noun
- A small poisonous snake found in Europe and parts of Asia, often with a zigzag pattern on its back.
- Adders usually avoid humans and will only bite if threatened.
- We saw an adder sunning itself on a rock during our hike.
- The common adder is the only venomous snake native to the United Kingdom.
- A person or thing that adds something, especially numbers.
- The cashier was a quick adder and rarely made mistakes.
- She's a fast adder and finished the math test early.
- This machine is a reliable adder for basic arithmetic.