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 city has already installed 650 solar lights this fiscal year, Sangalang said.
—
Los Angeles Times, 8 May 2026
The researchers calculated how long such solar destruction of debris in Mercury’s orbit takes and arrived at a timescale of about four million years.
—Phil Plait, Scientific American, 8 May 2026
In real space travel, however, or for anyone living off-world long term, coping with cosmic and solar radiation would be one of the most crucial considerations for survival.
—Alan Bradley, Space.com, 8 May 2026
SpaceX, set to be the largest IPO in history, has previewed huge expenditures, including launchpads and a new solar-cell factory, The Wall Street Journal reported.
—J.d. Capelouto, semafor.com, 7 May 2026
See All Example Sentences for solar
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Los Angeles Times, 8 May 2026
The researchers calculated how long such solar destruction of debris in Mercury’s orbit takes and arrived at a timescale of about four million years.
—Phil Plait, Scientific American, 8 May 2026
In real space travel, however, or for anyone living off-world long term, coping with cosmic and solar radiation would be one of the most crucial considerations for survival.
—Alan Bradley, Space.com, 8 May 2026
SpaceX, set to be the largest IPO in history, has previewed huge expenditures, including launchpads and a new solar-cell factory, The Wall Street Journal reported.
—J.d. Capelouto, semafor.com, 7 May 2026
See All Example Sentences for solar
Cite this Entry
“Solar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar. Accessed 16 May. 2026.
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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