Definition link is back on Google search

The definition link that google has earlier removed from the search results has now been restored!
So no need to type in the "define:" keyword to lookup dictionary meanings.

Update 9/7/2010: Just a day after bringing the feature back, Google has again taken the definition link down.
Whats happening? Is it testing?

Update 13/7/2010: Ok. A revamped dictionary is now displayed for word searches on Google.
Infact this is even better than the original definition link. The meaning is provided along with search results. Just hope this one stays.