Latin: "among other things", "for example" or "including".
Legal drafters would use it to precede a list of examples or samples covered by a more general descriptive statement.
Sometimes they use an inter alia list to make absolutely sure that users of the document understand that the general description covers a certain element (which was covered in the general description anyway) without, in any way, restricting the scope of the general element to include other things that were not singled out in the inter alia list.