Related to Log board: Logic board
|(Naut.)||a board consisting of two parts shutting together like a book, with columns in which are entered the direction of the wind, course of the ship, etc., during each hour of the day and night. These entries are transferred to the log book. A folding slate is now used instead.|
See also: Log
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.