Wēst'ing, n.

n. 1. Space or distance westward; distance toward the west; as, the westing and southing of a ship. 2. (Naut. & Surv.) The distance, reckoned toward the west, between the two meridians passing through the extremities of a course, or portion of a ship’s path; the departure of a course which lies to the west of north. Math. Dict.