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
The Idaho Public Utilities Commission issued an order on Tuesday partially granting a request from Idaho Power to decrease the amount the utility credits to over 14,000 households in Southern Idaho with rooftop solar — though the decrease was less than the utility had hoped.
—
Angela Palermo, Idaho Statesman, 2 Oct. 2025
Mechanical engineering students in Germany have designed an innovative mobile energy trailer that combines solar power, battery storage, and a hydrogen fuel cell to deliver reliable electricity where the grid doesn’t reach.
—Georgina Jedikovska, Interesting Engineering, 2 Oct. 2025
Google and Entergy's partnership will cover the construction cost of Cypress Solar, a 600-megawatt and 35o-megawatt battery solar facility to be built near Pine Bluff.
—Sydney Sasser, Arkansas Online, 2 Oct. 2025
The report calls for retrofits and upgrades, like making schools fully electric and fossil fuel-free, installing clean solar power, and upgrading heating, cooling, and ventilation systems.
—Simmone Shah, Time, 2 Oct. 2025
See All Example Sentences for solar
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Angela Palermo, Idaho Statesman, 2 Oct. 2025
Mechanical engineering students in Germany have designed an innovative mobile energy trailer that combines solar power, battery storage, and a hydrogen fuel cell to deliver reliable electricity where the grid doesn’t reach.
—Georgina Jedikovska, Interesting Engineering, 2 Oct. 2025
Google and Entergy's partnership will cover the construction cost of Cypress Solar, a 600-megawatt and 35o-megawatt battery solar facility to be built near Pine Bluff.
—Sydney Sasser, Arkansas Online, 2 Oct. 2025
The report calls for retrofits and upgrades, like making schools fully electric and fossil fuel-free, installing clean solar power, and upgrading heating, cooling, and ventilation systems.
—Simmone Shah, Time, 2 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 10 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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