Nicad (noun)

1. A type of rechargeable battery that uses nickel and cadmium as its electrodes.
2. A type of battery that is rechargeable and has nickel-cadmium as its electrodes.

Origin:

An acronym for nickel-cadmium, a type of rechargeable battery.

Examples:

1. The power tool used a nicad battery that could be recharged many times.
2. The nicad batteries were more expensive but had a longer lifespan than other types of batteries.
3. The nicad batteries had to be recycled properly because of the cadmium content.
4. The nicad battery was used in some portable electronic devices because of its long life and high energy density.
5. He replaced the old nicad battery with a lithium-ion battery for better performance.