reflector

noun

re·​flec·​tor ri-ˈflek-tər 

1

: one that reflects

especially : a polished surface for reflecting light or other radiation

2

: a telescope in which the principal focusing element is a mirror

Examples of reflector in a Sentence

safety devices such as bicycle reflectors

Reflectors are placed along the lanes of the highway.

Recent Examples on the Web

The reflector shield’s diameter is just less than 32 inches, and the hottest areas are typically within a few feet of the base. —Caley Sturgill, Southern Living, 29 Sep. 2025

With the idea that the Mofate X Hike is built to mega-mile into remote spaces where even a simple injury could turn into a life-threatening disaster in a blink, the boot becomes Hoka's first to incorporate a Recco reflector. —New Atlas, 21 Sep. 2025

Provide point protection for Balch Camp PG&E hydro-electric and residential facilities, two powerhouses, Balch communication reflector, penstock and valve houses, and associated power distribution lines. —Ca Wildfire Bot, Sacbee.com, 10 Sep. 2025

Dust tails are far brighter and more spectacular to the eye than gas tails, because dust is a very effective reflector of sunlight. —Joe Rao, Space.com, 8 Sep. 2025

Word History

First Known Use

1665, in the meaning defined at sense 1

Rhymes for reflector

• bisector
• collector
• connector
• corrector
• defector
• deflector
• detector
• director
• dissector
• effector
• ejector
• elector

Kids Definition

reflector

noun

re·​flec·​tor ri-ˈflek-tər 

1

: one that reflects

especially : a polished surface for reflecting light or heat

2

: a telescope in which the principal light-gathering element is a mirror

Medical Definition

reflector

noun

re·​flec·​tor ri-ˈflek-tər 

: one that reflects

especially : a polished surface for reflecting light or other radiation