streamline (stream|line)

verb

• 1 (usually as adjective streamlined) design or provide with a form that presents very little resistance to a flow of air or water, increasing speed and ease of movement: streamlined passenger trains

• 2make (an organization or system) more efficient and effective by employing faster or simpler working methods: the company streamlined its operations by removing whole layers of management

noun

• a line along which the flow of a moving fluid is least turbulent.

adjective

• 1(of fluid flow) free from turbulence.

• 2 dated having a streamlined shape: a streamline aeroplane