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n. Nautical
The principal upright post at the stern of a vessel, usually serving to support the rudder.


(Nautical Terms) nautical the main upright timber or structure at the stern of a vessel



an upright member rising from the after end of a keel; a rudderpost or propeller post.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sternpost - (nautical) the principal upright timber at the stern of a vessel
sailing, seafaring, navigation - the work of a sailor
timber - a beam made of wood
References in classic literature ?
The type of rudder is unaffected by the new rules, so we may expect to see the Long-Davidson make (the patent on which has just expired) come largely into use henceforward, though the strain on the sternpost in turning at speeds over forty miles an hour is admittedly very severe.
shooting across its bow, using high-powered water houses, maneuvering in front of the vessel to stop it, and disabling its rudder or sternpost ?
The explosion fractured the sternpost, distorted the starboard inboard propeller shaft, and flooded three compartments.
Miles and miles of pack ice, driven by the power of the Weddell Sea, converged on the valiant ship, tearing off the rudder and sternpost and driving her keel upwards, shattering her timbers and bursting her stout hardwood beams.
Leaning heavily to port, the 200ft Al Mansur was at the whim of the tide, bobbing around the main dock of Basra surrounded by an ugly puddle of diesel oil, its Iraqi flag hanging limp and torn at its sternpost.
The junk's square stem must be what led to the early introduction of the sternpost rudder, rather than the oar to the side of the stern that acted as a rudder in classic Mediterranean ships.