bulkhead

The definition of a bulkhead is a wall, embankment or partition used to protect against slippage, fire or flood.

(noun)

An example of bulkhead is a rock retaining wall.

See bulkhead in Webster's New World College Dictionary

noun

any of the upright partitions separating parts of a ship, airplane, etc. as for protection against fire or leakage
a wall or embankment for holding back earth, fire, water, etc.
☆ a boxlike structure built over an opening, as at the head of a staircase, elevator shaft, etc.

Origin: bulk + head

See bulkhead in American Heritage Dictionary 4

noun

a. One of the upright partitions dividing a ship into compartments and serving to add structural rigidity and to prevent the spread of leakage or fire.
b. A partition or wall serving a similar purpose in a vehicle, such as an aircraft or spacecraft.
A wall or an embankment, as in a mine or along a waterfront, that acts as a protective barrier.
Chiefly New England A horizontal or sloping structure providing access to a cellar stairway.

Origin:

Origin: bulk, stall, partition (perhaps of Scandinavian origin)

Origin: + head

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