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.
A diminished chord is the root, the flatted third, and the flatted fifth. So the notes in a C diminished chord are: C, Eb, & Gb. (It is like a C minor, {C, Eb, & G} with the fifth, G, also flatted.) A C diminished chord would typically be denoted either: C dim, C Dim and occasionally as C-. 3.