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
1Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use solar day in a sentence
Yet the general solar day, from which the average one is derived, is a very indefinite term as to its length.
Then it must follow that as the daily sections of the orbit vary in length, the time of the solar day must vary in length.
All the magnetic elements at any ordinary station show a regular variation in the solar day.
The latter are divided into sidereal hours, minutes and seconds as the solar day is.
But it moved always as the sun moved, and just as regularly, giving a true measure of the solar day.
Time Telling through the Ages | Harry Chase Brearley
British Dictionary definitions for solar day
the period of time during which the earth makes one complete revolution on its axis relative to the sun: See day (def. 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
Scientific definitions for solar day
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Browse