solar

¹ American  

[soh-ler] / ˈsoʊ lər /

adjective

1. of or relating to the sun.

   solar phenomena.

2. determined by the sun.

   solar hour.

3. proceeding from the sun, as light or heat.

4. utilizing, operated by, or depending on solar energy.

   a solar building;

   a solar stove.

5. indicating time by means of or with reference to the sun.

   a solar chronometer.

6. manufacturing or providing solar power.

   the solar industry.

7. Astrology. subject to the influence of the sun.

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noun

1. Informal. solar energy.

solar ² American  

[sol-er, soh-ler] / ˈsɒl ər, ˈsoʊ lər /

Also soller

noun

1. a private or upper chamber in a medieval English house.

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solar British  

/ ˈsəʊlə /

adjective

1. of or relating to the sun

   solar eclipse

2. operating by or utilizing the energy of the sun

   solar cell

3. astronomy determined from the motion of the earth relative to the sun

   solar year

4. astrology subject to the influence of the sun

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solar Scientific  

/ sō′lər /

1. Relating to the Sun.

2. Using or operated by energy from the Sun.

3. Measured in reference to the Sun.

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Etymology

Origin of solar¹

First recorded in 1400–50; late Middle English, from Latin sōlāris, equivalent to sōl + -āris adjective suffix; sun, -ar ¹

Origin of solar²

First recorded before 900; Middle English solar, soler, from Old English solor, soler, and Anglo-French soler, Old French solier, from Latin sōlārium solarium

Example Sentences

The findings also raise questions about the distant future of our own solar system.

From Science Daily • Apr. 4, 2026

Any serious solar geoengineering project is probably decades away, but perhaps that’s a good reason to accelerate development now.

From Salon • Apr. 4, 2026

No less than half of the silver is used in industry, mainly for electronics, solar panels, and medical applications.

From Barron's • Apr. 3, 2026

Flores said he has considered using solar panels to generate electricity but the initial cost is high as well.

From Los Angeles Times • Apr. 3, 2026

That every atom in us originally came from a shining light at the heart of the solar system.

From "City of the Plague God" by Sarwat Chadda

Related Words

• cosmic