Synonymous at sea with log-book; it is a daily register of the ship's course and distance, the winds and weather, and a general account of whatever is of importance. In sea-journals, the day, or twenty-four hours, used to terminate at noon, because the ship's position is then generally determined by observation; but the shore account of time is now adopted afloat. In machinery, journal is the bearing part of a shaft, upon which it rests on its Y's or bearings.