Subluxation: Partial dislocation of a joint. A complete dislocation is a luxation.
The largest number of items per content database that has been tested on SharePoint Server 2013 is 60 million items, including documents and list items. If you plan to store more than 60 million items in SharePoint Server 2013, you must deploy multiple content databases.
When you are inside a Document Library in a SharePoint Server 2010 Document Library and select the Documents tab, then click on the Upload Document drop down button, the Upload Multiple Documents command is disabled (grayed out). See Figure 1-1.