Definitions for "Solar day"
The synodic rotation period of the earth with respect to the sun; that is, the length of time from one local noon, when the sun is on the meridian, to the next local noon. A to F | G to L | M to R | S to Z
average time required for the Earth to complete on rotation with respect to the Sun
The time required for the Sun to move from one meridian transit to the next, as a result of the Earth's rotation. Longer than the sidereal day, because of the apparent motion of the Sun, caused by our orbital motion. The apparent solar day is the actual time required for this motion on any given day, and varies throughout the year, because of the tilt of our axis and the eccentricity of our orbit. The mean solar day is the average length of the apparent solar day, over the course of one year.