Definition of jackstay in English:

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jackstay

Pronunciation: /ˈjakstā/

noun

Nautical
A rope, bar, or batten placed along a ship’s yard to bend the head of a square sail to.
Example sentences
  • All participating personnel were transferred to/from their respective ships, via light jackstay, RHIB or the Tobruk's embarked Sea King and Lynx helicopters.
  • Fuel transfer is accomplished by suspending a hose from a tensioned cable, the jackstay, which runs from RFA Fort Victoria to the receiving warship.
  • They conducted a comprehensive tour of the warship before observing the process of a light jackstay conducted with ANZAC.

For editors and proofreaders

Syllabification: jack·stay

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