South″ing (?; 277), n. 1. Tendency or progress southward; as, the southing of the sun. Emerson.
2. The time at which the moon, or other heavenly body, passes the meridian of a place.
3. (Astron.) Distance of any heavenly body south of the equator; south declination; south latitude.
4. (Surv. & Navigation) Distance southward from any point departure or of reckoning, measured on a meridian; — opposed to northing.