solar

1. not comparableOf or pertaining to the sun; proceeding from the sun.

   solar rays

   2 more examples

   solar light

   solar influence

2. not comparableobsoleteastrologyBorn under the predominant influence of the sun.

   and proud beside, as solar people are

   1700, [John] Dryden, “The Cock and the Fox: Or, The Tale of the Nun’s Priest, from Chaucer”, in Fables Ancient and Modern; […], London: […] Jacob Tonson, […], →OCLC

3. not comparableMeasured by the progress or revolution of the sun in the ecliptic; as, the solar year.
4. not comparableProduced by the action of the sun, or peculiarly affected by its influence.

   Nor is solar power yet as cheap as the grid.

   2013 July 20, “Out of the gloom”, in The Economist, volume 408, number 8845, archived from the original on 12 Mar 2023

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   They denominate some herbs solar, and some lunar.

   1627 (indicated as 1626), Francis [Bacon], “(please specify the page, or |century=I to X)”, in Sylua Syluarum: Or A Naturall Historie. In Ten Centuries. […], London: […] William Rawley […]; [p]rinted by J[ohn] H[aviland] for William Lee […], →OCLC

5. not comparableEmploying solar power.

   a solar furnace

plural solars

1. abbreviationellipsisuncountableEllipsis of solar energy.

   He’s a player in robots and solar, cryptocurrency and climate, brain-computer implants to stave off the menace of artificial intelligence and underground tunnels to move people and freight at super speeds.

   December 13 2021, Molly Ball, Jeffrey Kluger, Alejandro de la Garza, “Elon Musk: Person of the Year 2021”, in Time Magazine, archived from the original on 13 Dec 2021

2. countableliteratureA fictional currency.

plural solars

1. historicalA loft or upper chamber forming the private accommodation of the head of the household in a medieval hall; a garret room.

1. not comparableAlternative letter-case form of solar (“pertaining to the Sun (the star Sol)”).

   Here our knowledge is somewhat more certain, especially in the local Solar neighbourhood.

   2004, M. A. C. Perryman, “Our Galaxy in three-dimensions: the Jeremiah Horrocks Memorial Lecture”, in D.W. Kurtz, editor, Transits of Venus: New Views of the Solar System and Galaxy, Cambridge University Press, published 2005, →ISBN, page 318

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   We have not yet the instruments that we want for that work, but I have asked for a Solar spectrograph, and I am already in the preliminary talkings to order a spectroheliograph […]

   1906, Filipe Valle, in Arthur Schuster (editor), Transactions of the International Union for Co-operation in Solar Research, Volume I, [Victoria] University [of Manchester] Press, page 115

   Values at the Solar location (Merrifield, 1992) are denoted by the subscript ○, and the present epoch is t ≡ 0, […]

   2001, John J. Matese et al., "Oort cloud flux due to the Galactic tide", in Mikhail Ya. Marov and Hans Rickman (editors), Collisional Processes in the Solar System, Kluwer Academic Publishers, page 93

   Data on absolute values of Solar flux in the wave-range λ < 130nm and in the hydrogen line L_α (λ = 121.6nm) were obtained on-board both CORONAS satellites.

   2004, T. V. Kazachevskaya et al., “Measurments^([sic]) of Solar EUV fluxes on board the ‘CORONAS’ satellites: equipment and main results”, in Alexander V. Stepanov et al., editors, Multi-Wavelength Investigations of Solar Activity: Proceedings IAU Symposium No. 223, 2004, Cambridge University Press, →ISBN, page 633