Modify vs Streamline - What's the difference?

In transitive terms the difference between modify and streamline

is that modify is to make partial changes to while streamline is to modernise.

a line that is tangent to the velocity of flow of a fluid; equivalent to the path of a specific particle in that flow.

(en-verb)

To make partial changes to.

To be or become modified.

* adapt, alter, amend, revamp, rework

* *

(wikipedia streamline)

(en noun)

(physics) A line that is tangent to the velocity of flow of a fluid; equivalent to the path of a specific particle in that flow.

(meteorology) On a weather chart, a line that is tangent to the flow of the wind.

(en-verb)

To design and construct the contours of a vehicle etc. so as to offer the least resistance to its flow through a fluid.

(by extension) To simplify or organize a process in order to increase its efficiency.

To modernise.

* streamliner

* *