reflector

UK: rɪˈflɛktə | US: rɪˈflɛktər

Definition

  1. n. a surface or device that reflects light, sound, or heat

  2. n. a component in optical systems (e.g., telescopes) that redirects light

  3. n. (colloquial) a reflective material used for safety (e.g., on clothing)

Structure
re <back>flect <bend>or <noun suffix denoting agent or tool>
Etymology

The word "reflector" traces back to Latin roots:

  • re- (back) + flectere (to bend), forming reflectere (to bend back).
  • The suffix -or (agent noun) was added in Late Latin (reflector), denoting "something that bends back."
    The term evolved in English (17th century) to describe devices that "bend back" light or sound waves, aligning with its literal Latin logic.
Examples

  1. The bicycle’s reflector glowed brightly under car headlights.

  2. Astronomers use parabolic reflectors to capture distant starlight.

  3. Road signs are coated with reflectors for nighttime visibility.

  4. The satellite’s reflector panel redirected solar energy.

  5. She sewed reflectors onto her backpack for safety.