Source : Free On-Line Dictionary of Computing

SLD resolution
     
        Linear {resolution} with a selection function for definite
        sentences.  A definite sentence has exactly one positive
        literal in each clause and this literal is selected to be
        resolved upon, i.e.  replaced in the goal clause by the
        conjunction of negative literals which form the body of the
        clause.
     
        (1995-06-03)