[n. of action, f. prec.: see -ATION.]
1. The action of aiming or directing anything in a straight line toward an object.
1755. in Johnson.
1807. W. Taylor, in Monthly Mag., XXIII. 13. The prudent excel in collineation, the rash tend to hyperbole.
2. = COLLIMATION (being the etymological form).
In modern Dicts.