—n. 1. Mil. a. a position of works, troops, etc., making them subject to a sweeping fire from along the length of a line of troops, a trench, a battery, etc.
b. the fire thus directed.
2. Archit. a. an axial arrangement of doorways connecting a suite of rooms with a vista down the whole length of the suite.
b. an axial arrangement of mirrors on opposite sides of a room so as to give an effect of an infinitely long vista.