bulkhead
/ˈbʌlk.hɛd/ noun C2- A vertical partition dividing the hull into separate compartments; often made watertight to prevent excessive flooding if the ship's hull is breached.
- A similar partition in an aircraft or spacecraft, or some rail vehicles.
- A partition or panel through which connectors pass, or a connector designed to pass through a partition.
- A pressure-resistant sealed barrier to any fluid in a large structure.
- A retaining wall along a waterfront.
- A cellar hatchway.
Plural bulkheads
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