To delegate (a responsibility, duty, etc.) on or upon someone.
To be inherited by someone else; to pass down upon the next person in a succession, especially through failure or loss of an earlier holder.
To degenerate; to break down.
To fall as a duty or responsibility on or upon someone.
To design and construct the contours of a vehicle etc. so as to offer the least resistance to its flow through a fluid.
To simplify or organize a process in order to increase its efficiency.
To modernise.
On a weather chart, a line that is tangent to the flow of the wind.
A line that is tangent to the velocity of flow of a fluid; equivalent to the path of a specific particle in that flow.