Madelung's disease is a disorder of fat metabolism (lipid storage) that results in an unusual accumulation of fat deposits around the neck and shoulder areas.
Iteration is the act of repeating a process with the aim of approaching a desired goal, target or result. Each repetition of the process is also called an iteration, and the results of one iteration are used as the starting point for the next iteration. The pentagon on the right also is a good example of how iteration relates to recursion.
In SAFe, Iteration Planning is a refinement of the level of detail and adjustment of the initial sprint plans derived from the PI Planning session. Teams approach iteration planning with a pre-elaborated Team Backlog, which is typically aided by a separate backlog refinement session prior to the sprint boundary. There are a number of inputs to the planning meeting.