- a person or thing that reflects; esp., a surface, object, etc. that reflects light, sound, heat, or the like, as a piece of glass or metal, highly polished and usually concave, which reflects and directs radiant energy, as beams of light, sound waves, etc., in a desired direction
- reflecting telescope
- a layer of material that reflects escaping neutrons back into the core of a nuclear reactor or bomb
- Something, such as a surface, that reflects.
- A reflecting telescope.
reflector - Computer Definition
A passive device that simply redirects radiant energy, rather than amplifying it or otherwise acting on the signal.