# reflector

/ɹɪˈfɫɛktɝ/ (US) · /ɹɪflˈɛktɐ/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/reflector
Updated: 2026-05-18

## Definition

a surface or object that sends light, heat, or sound back to where it came from. You often see them on bicycles to help you be seen at night.

For teachers: a surface or device that redirects light, sound, or heat back toward its source. Often used in safety equipment or optical systems to enhance visibility.

## Examples

- The cyclist wore a bright yellow reflector on his back.
- The car's headlights were blocked by a thick layer of fog, but the reflector on the road sign still helped us see the curve.
- Engineers designed the satellite's surface to act as a perfect reflector, ensuring that the signal returned to Earth with minimal loss of strength.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.