Descriptions on databases

Is there any way to put a description on a database? We have a couple databases that use acronyms which I would like to spell out as metadata.

See SQL Server 2005 Books Online topic:
Using Extended Properties on Database Objects
http://msdn2.microsoft.com/en-us/library/ms190243.aspx

Description for Calculated Members

You can add descriptions to measures that are built under the Cube Structure tab. But I cannot see how to add a description to a Calculated Member. Is it possible to add a description to a Calculated Member?
Looks like this has already been answered.

Anyone interested, here is the link.

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=325816&SiteID=1
|||You might be interested in looking at BIDSHelper www.codeplex.com/bidshelper it's free addin for BI Development Studio that adds a number of useful features including the ability to add descriptions to calculated members (through the member properties dialog) http://www.codeplex.com/bidshelper/Wiki/View.aspx?title=Calculation%20Helpers&referringTitle=Home