shipworm

She was in poor conditions: the hull was flooded, the shipworm decayed the wood, and the sails were in very bad condition.
Se hallaba en pésimas condiciones: el casco hacía agua, la broma corroía la madera y el velamen estaba en muy mal estado.
The Vikings painted the bottom of their ships with tar to prevent shipworm from gnawing through the wood of the hull.
Los vikingos aplicaban brea al fondo de sus barcos para evitar que la broma marina bromara la madera del casco.
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