pneumatic pile
noun Building Trades.
a hollow pile, used under water, in which a vacuum is induced so that air and water pressure force it into place.
Origin of pneumatic pile
First recorded in 1855–60
Words nearby pneumatic pile
pneumarthrosis,
pneumatic,
pneumatic bone,
pneumatic conveyor,
pneumatic duct,
pneumatic pile,
pneumatic trough,
pneumatic tyre,
pneumatics,
pneumatization,
pneumato-