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 mission is meant to be the first step in the company's ambitious plan to operate a constellation of more than 4,000 solar reflectors to boost solar power production in twilight hours on Earth.
—
Tereza Pultarova, Space.com, 21 Oct. 2025
At an altitude of 625 kilometers, an 18-meter reflector — even if optimally curved to focus that light down onto the Earth’s surface — would create a spot of light just-under 6 km across on Earth’s surface.
—Big Think, 15 Oct. 2025
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
See All Example Sentences for reflector
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Tereza Pultarova, Space.com, 21 Oct. 2025
At an altitude of 625 kilometers, an 18-meter reflector — even if optimally curved to focus that light down onto the Earth’s surface — would create a spot of light just-under 6 km across on Earth’s surface.
—Big Think, 15 Oct. 2025
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
See All Example Sentences for reflector
Cite this Entry
“Reflector.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reflector. Accessed 29 Oct. 2025.
Copy CitationKids 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
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