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Oakum
01
オークム, 麻紐
a tarred fiber used for caulking seams in wooden ships and as insulation in plumbing
oakum
n
例
The shipwright carefully packed oakum into the seams of the wooden hull to make the vessel watertight.
After removing the old oakum, the ship's crew diligently replaced it with fresh tarred fiber to prevent leaks during the voyage.