Definition of bulkhead in English:

bulkhead

Syllabification: bulk·head
Pronunciation: /ˈbəlkˌhed
 
/

noun

A dividing wall or barrier between compartments in a ship, aircraft, or other vehicle.
More example sentences
  • The frigates have a double-skinned hull divided by ten bulkheads into watertight compartments.
  • The submarine consists of six watertight compartments separated by transverse bulkheads in a pressurised double-hull.
  • The aft compartment extended from the wing rear beam to a point forward of the aft pressure bulkhead of the fuselage.

Origin

late 15th century: from Old Norse bálkr 'partition' + head.

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excessive pride or self-confidence