From The Collaborative International Dictionary of English v.0.48 [gcide]:
2. (A["e]ronautics) A small plane or surface capable of being manipulated by the pilot of a flying machine to control lateral balance; a hinged wing tip; a lateral stabilizing or balancing plane. [Webster 1913 Suppl.]
From WordNet (r) 3.0 (2006) [wn]:
Define.com is a PRIVATE SECTOR NONPROFIT EDUCATIONAL WEBSITE that PROMOTES WORLDWIDE ELECTRONIC DEMOCRACY, OPEN and TRANSPARENT GOVERNMENT and WORLDWIDE BANKING REFORM.
Eye and Pyramid BANKING REFORM CHALLENGE