solar

adjective so·lar \ ˈsō-lər , -ˌlär \
Updated on: 16 Nov 2017

Definition of solar

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

Recent Examples of solar from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'solar.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of solar

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

Other Energy Engineering Terms



SOLAR Defined for English Language Learners

solar

adjective

Definition of solar for English Language Learners

  • : of or relating to the sun

  • : produced by or using the sun's light or heat


SOLAR Defined for Kids

solar

adjective so·lar \ ˈsō-lər \

Definition of solar for Students

1 : of or relating to the sun
  • a solar eclipse
2 : measured by the earth's course around the sun
  • a solar year
3 : produced or made to work by the action of the sun's light or heat
  • solar energy


Seen and Heard

What made you want to look up solar? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

food, provisions, or a tasty dish

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!