1. A person who leads or directs another in his way or course, as in a strange land; one who exhibits points of interest to strangers; a conductor; also, that which guides; a guidebook.
2. One who, or that which, directs another in his conduct or course of lifo; a director; a regulator. He will be our guide, even unto death. (Ps. Xlviii. 14)
3. Any contrivance, especially one having a directing edge, surface, or channel, for giving direction to the motion of anything, as water, an instrument, or part of a machine, or for directing the hand or eye, as of an operator; as: a blade or channel for directing the flow of water to the wheel buckets.
(Science: surgery) a strip or device to direct the compositor’s eye to the line of copy he is setting.
4. A noncommissioned officer or soldier placed on the directiug flank of each subdivision of a column of troops, or at the end of a line, to mark the pivots, formations, marches, and alignments in tactics. Guide bar, an additional rail, between the others, gripped by horizontal driving wheels on the locomotive, as a means of propulsion on steep gradients.
Origin: oe. Giae, f. Guide, It. Guida.