Definition of passaging:
(n) :
A paragraph or section of text or music with particular meaning.
(n) :
Part of a path or journey.
(n) :
An incident or episode.
(n) :
The official approval of a bill or act by a parliament.
(n) :
The advance of time.
(n) :
(art) The use of tight brushwork to link objects in separate spatial plains. Commonly seen in Cubist works.