#riding_bitt  one of the large bitts used to secure the cable of a dropped anchor
  supertype:  bollard__bitt  a strong post (as on a wharf or quay or ship for attaching mooring lines); "the road was closed to vehicular traffic with bollards"
  part of:  ship  a vessel that carries passengers or freight

No statement uses or specializes riding_bitt; click here to add one.