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
Hydroelectric and solar power will power the industrial park at a later date.
—
Victoria Milko, The Christian Science Monitor, 15 May 2024
Scientists theorize that without the protection of the magnetic field roughly 600 million years ago, solar radiation pounded the Earth’s atmosphere, stripping away hydrogen and other light gases from the atmosphere.
—Tara Wu, Smithsonian Magazine, 15 May 2024
See all Example Sentences for solar 
Victoria Milko, The Christian Science Monitor, 15 May 2024
Scientists theorize that without the protection of the magnetic field roughly 600 million years ago, solar radiation pounded the Earth’s atmosphere, stripping away hydrogen and other light gases from the atmosphere.
—Tara Wu, Smithsonian Magazine, 15 May 2024
See all Example Sentences for solar
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'solar.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near solar
Cite this Entry
“Solar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar. Accessed 21 May. 2024.
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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