Definition of "eye-line" [eye-line]

• In hemipterous insects, an imaginary straight line extending from the eye to the origin of the labrum. (noun)
• In some primitive forms of trilobites, one of two raised lines which extend outward from near the forward end of the glabella to the eyes. (noun)

The Century Dictionary (Public Domain)

• "Laughs Yes…but anybody would do that because you have to have a reference for the actor to watch it and to know what it would be like to be tortured by this thing and for an eye-line, so they know where to look — that kind of thing."
• "A normal conversation at a restaurant table became jolted and dizzy because the eye-line was always shifting."
• "Not only would it be a headache, leave the same match up and eye-line problems as before, but it would miss the entire point of the original movie; the interaction, with self-awareness, of two completely different realities."