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 âhalf diminishedâ chord is a diminished chord (root, flat third, flat fifth) to which the normal dominant seventh (thatâs the flat seventh) has been added. Typically this chord will be labeled as âm7b5â on a chord sheet. Using the key of C as an example, here are your chords in question: C Major â C E G.