Weep hole: hole through a solid revetment, bulkhead or seawall for relieving water pressure.

UNESCO: L O S S A R Y

We have a watertight bulkhead up there and when we opened it, water came pouring out.

CNN: STORY HIGHLIGHTS

The experience and working methods of watertight-bulkhead technology are transmitted orally from master to apprentices.

UNESCO: CULTURE

Bulkhead: structure that retains or prevents the sliding of land or protects land from water damage.

UNESCO: L O S S A R Y

Some measures, like a bulkhead that burned in a brush fire, were damaged or destroyed before Sandy.

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The construction of the plane has been plagued by problems - it is seven years behind schedule and has required numerous re-designs because of delays in software delivery and bulkhead cracks.

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And bulkhead rows at the front of coach cabins that used to be ideal for traveling with infants, offering more privacy for diaper changes and more space for restless toddlers, now have to be reserved for passengers with disabilities.

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Further, Test and Evaluation officials discovered a handful of cracks on the right wing and right engine of the U.S. Air Force F-35A version, as well as multiple cracks on the bulkhead flange of the Marine short takeoff F-35B version.

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