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solar day

Astronomy. the time interval between two successive transits by the sun of the meridian directly opposite that of the observer; the 24-hour interval from one midnight to the following midnight.
Law. the period of time from sunrise to sunset.
Origin of solar day
1755-65 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for solar day
  • The company also manufactures solar day-lighting products and distributes solar light tubes.
  • There are secular variations in this period, but they are much more predictable than the changes in the length of the solar day.
British Dictionary definitions for solar day

solar day

the period of time during which the earth makes one complete revolution on its axis relative to the sun See day (sense 6)
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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solar day in Science
solar day  
See under solar time.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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