WHAT IS AN ACCUMULATE RECOMMENDATION?

According to Yahoo's Financial Glossary this is:
"Broker/analyst recommendation that could mean slightly different
things depending on the broker/analyst. In general, it means to
increase the number of shares of a particular security over the near
term, but not to liquidate other parts of the portfolio to buy a
security that might skyrocket. A buy recommendation, but not an urgent
buy."
http://biz.yahoo.com/f/g/g.html

The identical definition occurs in other on-line glossaries that come
up in the Google search, eg:
Bloomberg www.bloomberg.com/money/tools/bfglosa.html
Campbell R. Harvey's Hypertextual Finance Glossary
www.duke.edu/~charvey/Classes/wpg/glossary.htm

Search strategy on Google: financial glossary 
://www.google.com/search?q=financial+glossary&hl=en&lr=&ie=UTF-8&oe=UTF-8&safe=off