Search Result for "crossbench": 
Wordnet 3.0

NOUN (1)

1. any of the seats in the House of Commons used by members who do not vote regularly with either the government or the Opposition; 



WordNet (r) 3.0 (2006):

crossbench
    n 1: any of the seats in the House of Commons used by members
         who do not vote regularly with either the government or the
         Opposition