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.
an imaginary line representing a field of force, such as an electric or magnetic field, such that the tangent at any point is the direction of the field vector at that point
line of force
A line used to indicate the direction of a field, especially an electric or magnetic field, at various points in space. The tangent of a line of force at each point indicates the orientation of the field at that point. Arrows are usually used to indicate the direction of the force. See Note at magnetism.
- 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.
noun, Navigation. 1. a line connecting all the possible positions of a ship or aircraft, as determined by a single observation. Abbreviation: LOP.
noun, Football. 1. an imaginary line parallel to the goal lines that passes from one sideline to the other through the point of the football closest to the goal line of each team. noun 1. (American football) an imaginary line, parallel to the goal lines, on which the ball is placed at the start of […]