Term: T-Top Image: [{"name":"images\/public\/dictionary\/T-Top_anwuss3m.jpg","usrName":"T-Top.jpg","size":114073,"type":"image\/jpeg","thumbnail":"images\/public\/dictionary\/thT-Top_ty6q354m.jpg","thumbnail_type":"image\/jpeg","thumbnail_size":37080,"searchStr":"T-Top.jpg,!:sStrEnd"}] Definition: Short, aluminum tower with overhead canvas to protect the helm.