solar

adjective

so·​lar ˈsō-lər How to pronounce solar (audio)
-ˌlär
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
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Those include investments in clean energy within the Inflation Reduction Act passed by Congress in 2022, which include solar, wind and geothermal projects, as well as investments in electrification, which will greatly reduce greenhouse gas emissions while keeping costs low. Mohamaed Ibrahim, Twin Cities, 6 Feb. 2025 Renewable sources like wind and solar have made great progress, but much investment is still needed to fill in the gaps in periods of low wind and sun. Stanley Reed, New York Times, 3 Feb. 2025 Green energy Renewable energy producers around the world could also get hit by tariffs, with China, Mexico and Canada all key bases for the production of machine parts used for solar, wind and other green technologies. Jenni Reid, CNBC, 3 Feb. 2025 The solar facility will generate about the same amount of energy each year that's used by 1,200 homes, the company said. Worth Sparkman, Axios, 3 Feb. 2025 See all Example Sentences for solar 

Word History

Etymology

Middle English, from Latin solaris, from sol sun; akin to Old English & Old Norse sōl sun, Lithuanian saulė, Greek hēlios

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of solar was in the 15th century

Dictionary Entries Near solar

Cite this Entry

“Solar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar. Accessed 21 Feb. 2025.

Kids Definition

solar

adjective
so·​lar ˈsō-lər How to pronounce solar (audio)
-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
Etymology

Middle English solar "derived from or related to the sun," from Latin solaris (same meaning), from sol "sun" — related to sunday see Word History at sunday

More from Merriam-Webster on solar

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