Term: Multihull Image: [{"name":"images\/public\/dictionary\/Multihull_j44btzs9.jpg","usrName":"Multihull.jpg","size":67429,"type":"image\/jpeg","thumbnail":"images\/public\/dictionary\/thMultihull_2r38u67o.jpg","thumbnail_type":"image\/jpeg","thumbnail_size":67429,"searchStr":"Multihull.jpg,!:sStrEnd"}] Definition: A boat with more than one hull, such as a catamaran or trimaran.