1
: of, derived from, relating to, or caused by the sun
2
: measured by the earth's course in relation to the sun
a solar year
also
: relating to or reckoned by solar time
3
a
: produced or operated by the action of the sun's light or heat
solar energy
b
: utilizing the sun's rays especially to produce heat or electricity
a solar house
also
: of or relating to such utilization
solar design
Examples of solar in a Sentence
Recent Examples on the Web
NextEra Energy NextEra Energy is a major producer of solar and wind power.
—
Melanie Hicken, CNN Money, 24 Oct. 2025
Instead, they are designed to focus on the large solar eruptions because these have the most effects on infrastructure on Earth.
—JSTOR Daily, 24 Oct. 2025
Megan Anderson, senior campaign representative at the Sierra Club, criticized AES' reliance on natural gas plants to power data centers instead of renewable options like wind or solar.
—Alysa Guffey, IndyStar, 23 Oct. 2025
Geographical testing reveals where solar windows work best The research also explored how location affects the performance of these solar windows.
—Sujita Sinha, Interesting Engineering, 23 Oct. 2025
See All Example Sentences for solar
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Melanie Hicken, CNN Money, 24 Oct. 2025
Instead, they are designed to focus on the large solar eruptions because these have the most effects on infrastructure on Earth.
—JSTOR Daily, 24 Oct. 2025
Megan Anderson, senior campaign representative at the Sierra Club, criticized AES' reliance on natural gas plants to power data centers instead of renewable options like wind or solar.
—Alysa Guffey, IndyStar, 23 Oct. 2025
Geographical testing reveals where solar windows work best The research also explored how location affects the performance of these solar windows.
—Sujita Sinha, Interesting Engineering, 23 Oct. 2025
See All Example Sentences for solar
Cite this Entry
“Solar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar. Accessed 31 Oct. 2025.
Copy CitationKids Definition
solar
adjective
so·lar
ˈsō-lər 
-ˌlär
1
: of, derived from, relating to, or caused by the sun
2
: measured by the earth's course in relation to the sun
solar time
solar year
3
a
: produced or operated by the action of the sun's light or heat
solar energy
b
: using the sun's rays especially to produce heat or electricity
a solar house
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