Term: Keel Image: [{"name":"images\/public\/dictionary\/Keel_qp1feijb.png","usrName":"Keel.png","size":227284,"type":"image\/png","thumbnail":"images\/public\/dictionary\/thKeel_fkak51yp.png","thumbnail_type":"image\/png","thumbnail_size":78994,"searchStr":"Keel.png,!:sStrEnd"}] Definition: The bottom-most portion or longitudinal centerline of a hull.