WordNet (r) 3.0 (2006):

Nelson
    n 1: English admiral who defeated the French fleets of Napoleon
         but was mortally wounded at Trafalgar (1758-1805) [syn:
         Nelson, Horatio Nelson, Viscount Nelson, Admiral
         Nelson, Lord Nelson]
    2: any of several wrestling holds in which an arm is passed
       under the opponent's arm from behind and the hand exerts
       pressure on the back of the neck