solar

¹

[soh-ler]

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.

noun

1. Informal.,  solar energy.

solar

²

Also soller

[sol-er, soh-ler]

noun

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

solar

/ 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

solar

1. Relating to the Sun.

2. Using or operated by energy from the Sun.

3. Measured in reference to the Sun.

Word History and Origins

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

Word History and Origins

Origin of solar¹

C15: from Latin sōlāris, from sōl the sun

Example Sentences

Last year saw China's electricity generation from coal hit a new record – although initial data suggests it has fallen in the first half of 2025 amid a surge in solar electricity.

From BBC

He said AI itself would design better gas turbines, solar panels, wind turbines and fusion energy to produce more cost effective sustainable energy.

From BBC

Cooper, the party's treasury spokesperson, said the policy would allow home owners and small businesses "to do the right thing" by investing in solar panels, heat pumps and insulation.

From BBC

The Liberal Democrats have called on the government to rule out awarding contracts to Musk's Tesla company which produces electric vehicles, batteries and solar panels.

From BBC

Wait for enhanced solar activity and check the weather, because the lights will not be visible in a cloudy sky, he added.

From BBC

Related Words

• cosmic