Definitions

1. noun

A device or appliance that converts electrical energy into other forms, such as light or heat, typically through electromagnetic induction.

“The company developed a range of energisers for portable electronics.”

2. noun

A substance or agent that stimulates physical or mental activity, especially in a competitive context.

“The energiser in the sports drink helped me power through the marathon.”

3. verb

To provide or stimulate energy or excitement in someone or something.

“The new policy will energise the economy and create jobs.”