Definitions
from The Century Dictionary.
- noun The end of a vessel used as a tank. When such tanks are cylindrical and must withstand pressure, the tank-head is often convex on one end and concave on the other. The convex end offers no tendency to deform under pressure, and the concave end can be more readily riveted or welded in place to close the vessel up.
Etymologies
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Examples
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The glazed eyes, the big smile, the tight necktie – future fellow of the think-con tank-head circuit written all over him.
Think Progress » Young America’s Foundation Student Conference Bans Progressive Reporters 2006
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