Definition of "bulkhead" []

• 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. (noun)
• A partition or wall serving a similar purpose in a vehicle, such as an aircraft or spacecraft. (noun)
• A wall or an embankment, as in a mine or along a waterfront, that acts as a protective barrier. (noun)
• Chiefly New England A horizontal or sloping structure providing access to a cellar stairway. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "And the best seats include exit row seats or seats that in what are known as the bulkhead, the first row of seats."
• ""You apparently decided the bulkhead was a paper hoop and tried to dive through it," said Paresi."
• "This bulkhead, which is about four feet high, should be raised to a height of about eight feet."