solar
adj.adj. related to the sun or the energy that comes from it. You use this to describe things that use sunlight for power.
adj. relating to, derived from, or determined by the sun. Often used in technical contexts to describe systems that harness electromagnetic radiation for energy.
We installed solar panels on our roof to save money.
The city is investing in solar energy to reduce its reliance on coal and other fossil fuels.
A total solar eclipse occurs when the moon passes between the earth and the sun, momentarily obscuring the solar disk from view.
From Late Middle English solar, from Latin sōlāris, from sōl (“sun”), from Proto-Indo-European *sóh₂wl̥ (“sun”).
From Middle English solar, soler; from a conflation of Old English soler, solere (“raised platform; loft, upper room, upper part of a house, soler”), from Latin sōlārium; and Old English solor, salor (“residence, dwelling; hall; palace”), from Proto-West Germanic salaʀ, from Proto-Germanic salaz, *salą (“house, room, hall”). More at sale.
Typically used as an attributive adjective, appearing before the noun it modifies.