Definition of: streamline

(strēm′līn′) noun
1. The course of a fluid relative to a solid body past which it is moving, especially a course free of turbulence or eddies.
2. Any shape or contour designed to lessen air resistance.
—adjective
1. Designating an uninterrupted flow or drift.
2. Denoting a form, body, or the like so constructed as to permit an uninterrupted flow of fluid around it: a streamline flow, a streamline shape, a strẹamline body for a motor car.
—v.t. ·lined,·lin·ing
1. To design with a streamline shape.
2. To make more simple, efficient, or up to date, especially by reorganization.