Definition of "stabiliser"

Another interesting feature of the Falaise is that she is provided with a Denny Brown stabiliser to minimise rolling, and amenities for the passenger include the provision of a radio telephone service, which is available on passage.

1947 September and October, “First Southern Railway Post-War Vessel”, in Railway Magazine, page 294

The 0812 Huddersfield-Sheffield service struck the stabiliser leg of a lorry being used to take away portable toilets after local repair work.

2021 December 29, “Network News: RAIB: tighten up supervision after 27mph train sideswipe incident”, in RAIL, number 947, page 8