so·​lar | \ ˈsō-lər, -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

There’s an opportunity with coal coming offline to have wind and solar step up. David Grossman, Popular Mechanics, "Texas Could Easily Generate Most of Its Energy Through Wind And Solar, Study Finds," 3 Jan. 2019 The city proposed to create a large solar array in the shape of the company’s logo. Patrick Sisson, Curbed, "Amazon HQ2 bids: The weird ways cities wanted to woo Bezos," 27 Dec. 2018 Serving as the catalyst for these superheroes, a routine rescue mission in space soon turns dangerous when a solar flair strikes Jean. Devon Ivie, Glamour, "Sophie Turner Isn't Playing Any Games in the First Epic Trailer for Dark Phoenix," 27 Sep. 2018 Instead of relying on natural gas to make H2, the new add-on will feed power from a 2.5-megawatt solar array into a bank of electrolyzers, which split water into H2 and O2. Robert F. Service, Science | AAAS, "Ammonia—a renewable fuel made from sun, air, and water—could power the globe without carbon," 12 July 2018 Where to stay: The eleven-room Retreat opened last year with a focus on sustainability and wellness, and is the first fully solar powered hotel in Kigali. Christina Pérez, Vogue, "Here’s Where to Travel in 2019," 26 Dec. 2018 SpaceX released photos of its Crew Dragon spacecraft this week, and the company showed off the vehicle's built-in solar arrays as well as its Falcon 9 launch vehicle being integrated for launch. Eric Berger, Ars Technica, "Rocket Report: Rokot ending, more spaceports, back-to-back Falcon Heavies," 21 Dec. 2018 In a concentrated solar power plant, large arrays of mirrors reflect sunlight onto a single tower, heating the fluid inside it. David Roberts, Vox, "The Green New Deal, explained," 21 Dec. 2018 Mini-grids are banks of batteries often charged by solar arrays. The Economist, "Mini-grids may be the best way to illuminate the “bottom billion”," 12 July 2018

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.

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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

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Statistics for solar

Last Updated

13 Jan 2019

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Time Traveler for solar

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

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More Definitions for solar



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 \

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

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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

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a complex dispute or argument

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