a military or naval officer serving with combatant units or warships, as distinguished from a staff officer, supply officer, etc.
noun 1. the straight horizontal line from the muzzle of a weapon in the direction of the axis of the bore, just prior to firing. noun 1. the flight path of a missile discharged or to be discharged from a firearm
noun, Physics. 1. an imaginary line or curve in a field of force, as an electric field, such that the direction of the line at any point is that of the force in the field at that point. noun 1. an imaginary line representing a field of force, such as an electric or magnetic field, […]
- Line of fixation
line of fixation n. An imaginary line joining the optical point of fixation with the fovea and passing through the nodal point.
noun 1. (formerly) a line of force in a magnetic field.