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[soh-ler] /ˈsoʊ lər/
of or relating to the sun:
solar phenomena.
determined by the sun:
solar hour.
proceeding from the sun, as light or heat.
utilizing, operated by, or depending on solar energy:
a solar building; a solar stove.
indicating time by means of or with reference to the sun:
a solar chronometer.
manufacturing or providing solar power:
the solar industry.
Astrology. subject to the influence of the sun.
Informal. solar energy.
Origin of solar1
late Middle English
1400-50; late Middle English < Latin sōlāris, equivalent to sōl sun + -āris -ar1


[sol-er, soh-ler] /ˈsɒl ər, ˈsoʊ lər/
a private or upper chamber in a medieval English house.
Also, sollar, soller.
before 900; Middle English solar, soler < Anglo-French soler, Old French solier < Latin sōlārium solarium; compare Old English solor, soler, Middle Dutch solre loft < Latin Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for solar
Contemporary Examples
Historical Examples
  • Its summit elevation is nearly 15,000 feet, and in 1881 Langley made its ascent for the purpose of measuring the solar constant.

    Astronomy David Todd
  • Let us apply this truth to the solar system, and see what we get.

    Aether and Gravitation William George Hooper
  • And both the mind and the eyes of that maiden of excellent waist became rivetted fast upon the solar orb.

    The Mahabharata of Krishna-Dwaipayana Vyasa Bk. 3 Pt. 2 Translated by Kisari Mohan Ganguli
  • Let us apply this fact to the solar system and see how it works.

    Aether and Gravitation William George Hooper
  • As the sun moves closer to the southern horizon in the winter, the solar cooker is naturally less effective.

    The BYU Solar Cooker/Cooler Steven E. Jones
British Dictionary definitions for solar


of or relating to the sun: solar eclipse
operating by or utilizing the energy of the sun: solar cell
(astronomy) determined from the motion of the earth relative to the sun: solar year
(astrology) subject to the influence of the sun
Word Origin
C15: from Latin sōlāris, from sōl the sun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for solar

mid-15c., "pertaining to the sun," from Latin solaris "of the sun," from sol "sun" (see sol). Meaning "living room on an upper story" is from Old English, from Latin solarium (see solarium).

Astrological sense from 1620s. Meaning "operated by means of the sun" is from 1740; solar power is attested from 1915, solar cell from 1955, solar panel from 1964. Solar system is attested from c.1704; solar wind is from 1958. Solar plexus (1771) "complex of nerves in the pit of the stomach," apparently so called from its central position in the body (cf. plexus).

Online Etymology Dictionary, © 2010 Douglas Harper
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solar in Science
  1. Relating to the Sun.

  2. Using or operated by energy from the Sun.

  3. Measured in reference to the Sun.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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