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
Experts think these gears predicted the positions of the sun, moon and some planets, as well as solar and lunar eclipses.
—
Sonja Anderson, Smithsonian Magazine, 18 Apr. 2025
These solar storms create havoc in orbit in multiple ways.
—Tereza Pultarova, Space.com, 17 Apr. 2025
The sun is currently experiencing solar maximum, or the peak in its 11-year cycle, and as the sun becomes more active, researchers have observed increasingly intense solar flares and coronal mass ejections erupting from the fiery orb.
—Ashley Strickland, CNN Money, 16 Apr. 2025
Such workloads can be scheduled during off-peak hours when electricity prices may be lower and synchronized with periods of surplus wind or solar power, which would reduce costs and alleviate grid congestion.
—Neha Hegde, CNBC, 16 Apr. 2025
See All Example Sentences for solar
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Sonja Anderson, Smithsonian Magazine, 18 Apr. 2025
These solar storms create havoc in orbit in multiple ways.
—Tereza Pultarova, Space.com, 17 Apr. 2025
The sun is currently experiencing solar maximum, or the peak in its 11-year cycle, and as the sun becomes more active, researchers have observed increasingly intense solar flares and coronal mass ejections erupting from the fiery orb.
—Ashley Strickland, CNN Money, 16 Apr. 2025
Such workloads can be scheduled during off-peak hours when electricity prices may be lower and synchronized with periods of surplus wind or solar power, which would reduce costs and alleviate grid congestion.
—Neha Hegde, CNBC, 16 Apr. 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 5 May. 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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