so·​lar | \ ˈsō-lər How to pronounce solar (audio) , -ˌlär \

Definition of solar

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
3a : 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 Earth’s atmosphere and magnetosphere defuse the high-energy solar particles and protect us all from getting cancer every time the sun spits plasma. Daniel Oberhaus, Wired, "Europe’s Solar Orbiter Begins Its Journey to the Sun," 7 Feb. 2020 In 2012, protests in Chile contributed to the decision not to dam the Pascua and Baker rivers, and instead to install solar and wind farms for energy production. Rachel Nuwer, New York Times, "The Freshwater Giants Are Dying," 21 Jan. 2020 The rest comes through a partnership with the local utility NRG, which sells the Eagles renewable energy credits linked to other solar or wind farms throughout the region. Eleanor Cummins, Popular Science, "The Philadelphia Eagles are driving the NFL toward a greener future," 16 Jan. 2020 JetBlue will do this by investing in environmental projects including forest conservation; capturing and reusing methane gas emitted from landfills; and developing solar and wind farms in areas that would otherwise rely on fossil fuels for energy. Irina Ivanova, CBS News, "JetBlue to power some flights with "sustainable" jet fuel," 6 Jan. 2020 But look who’s clearing the ground for the country’s largest solar farm—and who’s opposing it. The Editorial Board, WSJ, "Greens Against Solar Power," 3 Jan. 2020 The facility would generate more power than the largest solar farm currently operating in the United States, a 579-megawatt plant in Southern California. Los Angeles Times, "Newsletter: This $800 million was meant for Native Americans. But...," 2 Jan. 2020 The country already has the world's largest solar farm, the Noor-Ouarzazate complex. Emma Reynolds, CNN, "Africa's 'first fully solar-powered village' wants to be a model for a renewable future," 13 Dec. 2019 The ruling doesn’t mean the projects – a 300-megawatt and a 100-megawatt solar farm in Highland County – are automatically dead. Jeremy Pelzer, cleveland, "State regulators reject AEP Ohio’s attempt to charge customers for massive solar projects," 21 Nov. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'solar.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of solar

15th century, in the meaning defined at sense 1

History and Etymology for solar

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

Keep scrolling for more

Learn More about solar

Time Traveler for solar

Time Traveler

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

See more words from the same century

Statistics for solar

Last Updated

10 Feb 2020

Cite this Entry

“Solar.” Dictionary, Merriam-Webster, Accessed 18 Feb. 2020.

Keep scrolling for more

More Definitions for solar


How to pronounce solar (audio)

English Language Learners Definition of solar

: of or relating to the sun
: produced by or using the sun's light or heat


so·​lar | \ ˈsō-lər How to pronounce solar (audio) \

Kids Definition of solar

1 : of or relating to the sun a solar eclipse
2 : measured by the earth's course around the sun a solar year
3 : produced or made to work by the action of the sun's light or heat solar energy

Keep scrolling for more

More from Merriam-Webster on solar

Rhyming Dictionary: Words that rhyme with solar

Spanish Central: Translation of solar

Nglish: Translation of solar for Spanish Speakers

Britannica English: Translation of solar for Arabic Speakers Encyclopedia article about solar

Comments on solar

What made you want to look up solar? Please tell us where you read or heard it (including the quote, if possible).


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

More Confusing Words—Quiz

  • cats on impossible timber
  • The magician ______ moved the selected card to the top of the deck.
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!