1 Retrieved October 19 2015 from http://www.acronymfinder.com/Radiology-Information-System%2fPicture-Archiving-and-Communication-System-(RIS%2fPACS).html. 2  APA style: RIS/PACS. (n.d.) Acronym Finder. ( 3 2015).
In music, a diminished triad ( Play ), also known as the minor flatted fifth (mâ­5), is a triad consisting of three minor thirds above the root â if built on C, a diminished triad would have a C, an Eâ­ and a Gâ­.
The remaining third, fifth and seventh of that chord form a diminished triad (whose new root is the third of the former chord), to which a diminished seventh can be added. Thus in C (major or minor), a dominant seventh chord consisting of G, B, D, F can be replaced by a diminished seventh chord B, D, F, Aâ­.