sternpost

POS

Noun

HYPHEN

stern=post

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WORDNET DICTIONARY

Noun sternpost has 1 sense

sternpost(n = noun.artifact) - (nautical) the principal upright timber at the stern of a vessel;

is a kind of

timber

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CIDE DICTIONARY

sternpost, n.

A straight piece of timber, or an iron bar or beam, erected on the extremity of the keel to support the rudder, and receive the ends of the planks or plates of the vessel. [1913 Webster]