reflector
Definitions
A device, such as a mirror or polished surface, used to reflect light, heat, or sound.
A person or thing that reflects, considers, or manifests something else.
Examples
The cyclist attached a red reflector to the back of his bike for better visibility at night.
The photographer used a large silver reflector to bounce soft light onto the model's face.
The telescope uses a curved mirror as a primary reflector to gather light from distant stars.
Synonyms
mirror speculum reverberator deflector echoer radiator projector