noun
: any one of a system of nonintersecting lines so drawn in mapping a vector field that the direction of the tangent to it at any point is that of the vector at that point
noun
: any one of a system of nonintersecting lines so drawn in mapping a vector field that the direction of the tangent to it at any point is that of the vector at that point
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012