# solar

Pronunciation: US say "SOH-lur" /ˈsoʊlə(ɹ)/; UK say "SOH-luh" /ˈsəʊlə/

## Adjective

1. Relating to the sun, or proceeding from the sun.
   - Simple: Having to do with the sun, or coming from the sun.
   - _Bursts of solar radiation can disrupt satellites and radio signals._
   - _Astronomers traced the flare back to a violent solar eruption._
2. Operating on power generated from the sun's energy.
   - Simple: Powered by energy that comes from the sun.
   - _The new homes come with solar water heaters fitted on the roof._
   - _Remote weather stations stay online using a small solar charger._
4. Measured by the apparent movement of the sun along its yearly path through the sky.
   - Simple: Measured by the way the sun appears to move across the year.
   - _The solar day is measured from one local noon to the next._
   - _Their festivals follow the solar year rather than the lunar months._
5. Produced by the sun's action, or strongly affected by its influence.
   - Simple: Caused by the sun, or strongly changed by its action.
   - _The solar heat of the desert noon cracked the parched ground._
   - _Decades of solar exposure had faded the fabric to a pale gray._

## Noun

3. Energy obtained from the light and heat of the sun.
   - Simple: Power that comes from the light and heat of the sun.
   - _The factory now meets a third of its demand with solar._
   - _Investors poured money into solar as installation costs kept falling._
6. An upper chamber or loft serving as the private quarters of the head of a household in a medieval hall.
   - Simple: A private upper room for the head of the household in a medieval hall.
   - _After the feast, the lord withdrew to the solar with his closest companions._
   - _The solar lay above the hall's dais, reached by a narrow timber stair._

## Adjective

7. In astrology, born under the dominant influence of the sun. *(obsolete)*
   - Simple: In old star-reading, born when the sun held the most power over a person's life.
   - _The court astrologer pronounced the newborn solar, destined to rule with the sun's authority._
   - _A solar temperament made one radiant and commanding, the old astrologers held._

## Origin

**Meanings 1–5, 7** — From Late Middle English solar, from Latin sōlāris, which comes from sōl ("sun"), ultimately from Proto-Indo-European *sóh₂wl̥ ("sun").
**Meaning 6** — From Middle English solar or soler, formed by blending two Old English words: soler or solere ("raised platform, loft, upper room"), from Latin sōlārium; and solor or salor ("residence, hall, palace"), from Proto-West Germanic *salaʀ and Proto-Germanic *salaz, *salą ("house, room, hall").

Source: DictionaryAI, https://dictionaryai.com/define/solar (written from Wiktionary data, CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/).