Patent Publication Number: US-D923048-S

Title: Display screen or portion thereof with transitional graphical user interface

Description:
FIG. 1  is a front view of a first image in a sequence of a display screen or portion thereof with transitional graphical user interface, showing our new design; 
         FIG. 2  is a front view of a second image thereof; and, 
         FIG. 3  is a front view of a third image thereof. 
       The appearance of the display screen or portion thereof with transitional graphical user interface sequentially transitions between the images shown in  FIGS. 1-3 . The process or period in which an image transitions to another forms no part of the claimed design. 
       The outermost broken lines illustrate a display screen and form no part of the claimed design. The remaining broken lines, including the broken line showing of text, illustrate portions of a graphical user interface and form no part of the claimed design.