1. 
   dry hopping
   the addition of hops near the end of the brewing process to impart aroma. The hops are par-boiled (so are not strictly 'dry')
   Found op http://www.bottledbeer.co.uk/glossary.html
   
   
2. 
   Dry Hopping
   Adding hops after the boil or even in the cask to increase hop aroma and flavor. This is most often seen in various types of ales, but not in lagers.
   Found op http://www.brew-monkey.com/brewschool/glossary.php
   
   
3. 
   Dry-hopping
   The addition of dry hops to fermenting or maturing beer to increase its hop character or aroma. (Not the bloke who goes from pub to pub and doesn't drink anything.)
   Found op http://www.caledonian-brewery.co.uk/brewery_glossary.html
   
   

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