solar

adjective

so·​lar ˈsō-lər 

-ˌlär

1

: of, derived from, relating to, or caused by the sun

2

: measured by the earth's course in relation to the sun

a solar year

also : relating to or reckoned by solar time

3

a

: produced or operated by the action of the sun's light or heat

solar energy

b

: utilizing the sun's rays especially to produce heat or electricity

a solar house

also : of or relating to such utilization

solar design

Examples of solar in a Sentence

Recent Examples on the Web

Key Background The anticipated peak of Solar Cycle 25, the sun’s 11-year solar cycle which is expected to crest somewhere between late 2024 and early 2026, has led to an increase in solar activity over the past few months. —Sara Dorn, Forbes, 15 Dec. 2024

Wind and solar power are nice, but a very small part of the answer. —Reader Commentary, Baltimore Sun, 12 Dec. 2024

During the infamous Carrington event of 1859, one of the most violent solar storms of the past 200 years, the telegraph network collapsed in large parts of northern Europe and North America. —Doyle Rice, USA TODAY, 12 Dec. 2024

The sun does have some influence on Earth's temperatures, which varies depending on the shape of Earth's orbit around the sun, its tilt on its axis and the solar cycle, Zee said. —Julia Jacobo, ABC News, 11 Dec. 2024

Word History

Etymology

Middle English, from Latin solaris, from sol sun; akin to Old English & Old Norse sōl sun, Lithuanian saulė, Greek hēlios

First Known Use

15th century, in the meaning defined at sense 1

Phrases Containing solar

• mean solar day
• solar battery
• solar cell
• solar collector
• solar constant
• solar day
• solar eclipse
• solar farm
• solar flare
• solar mass
• solar panel
• solar park
• solar plexus
• solar pond
• solar sail
• solar system
• solar wind
• the solar plexus

Kids Definition

solar

adjective

so·​lar ˈsō-lər 

-ˌlär

1

: of, derived from, relating to, or caused by the sun

2

: measured by the earth's course in relation to the sun

solar time

solar year

3

a

: produced or operated by the action of the sun's light or heat

solar energy

b

: using the sun's rays especially to produce heat or electricity

a solar house

Etymology

Middle English solar "derived from or related to the sun," from Latin solaris (same meaning), from sol "sun" — related to sunday see Word History at sunday