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solar day

noun

  1. 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.
  2. Law. the period of time from sunrise to sunset.

solar day

noun

  1. the period of time during which the earth makes one complete revolution on its axis relative to the sun See day
“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

solar day

  1. See under solar time
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Word History and Origins

Origin of solar day1

First recorded in 1755–65
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