bulkhead
n.a strong wall inside a ship or plane that divides the space into separate sections. It helps keep the vessel safe if one part starts to leak.
n.a partition or wall within a ship or aircraft that divides the interior into watertight or airtight compartments. Often reinforced to provide structural integrity and prevent the spread of water or fire.
“The crew sealed the bulkhead to stop the water from spreading.”
“Modern aircraft are designed with multiple bulkheads to ensure that a single structural failure does not compromise the entire fuselage.”
“The ship's hull was divided by several reinforced bulkheads, a design choice that significantly increased its chances of staying afloat after the collision.”
“The cargo area’s removable carpeted panels that plug the gap between seatbacks and the rearmost bulkhead felt cheap and home-built.”
From Old Norse bálkr (“partition”) + head, anglicised as bulk + head.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.