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

The academy is a nonprofit organization that offers high-school-age student-athletes both sports coaching and training in solar and wind energy. —J.m. Banks, Kansas City Star, 15 Mar. 2025

Blue Ghost is, therefore, operating for one entire period of lunar daylight, which is what most lunar missions do due to the need for solar power. —Jamie Carter, Forbes, 14 Mar. 2025

Other concerns about daylight saving time included disruptions to harvesting schedules for farmers, interference with religious observances based on solar and lunar time and potential delays in reworking computer systems programmed to switch twice a year. —Evan Moore, Charlotte Observer, 13 Mar. 2025

The company is well run and has made-in-America products to skirt tariffs, but the outlook for solar is still muddy under the Trump administration. —Kevin Stankiewicz, CNBC, 13 Mar. 2025

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

Rhymes for solar

• bowler
• choler
• dolor
• molar
• polar
• roller
• soler
• stroller
• troller
• volar
• ambipolar
• areolar

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