stuffing box

noun Machinery.
a device for preventing leakage of gases or liquids along a moving rod or shaft at the point at which it leaves a cylinder, tank, ship hull, etc.
Also called gland.

1790–1800 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
stuffing box
Also called: packing box a small chamber in which an annular packing is compressed around a reciprocating or rotating rod or shaft to form a seal

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Example sentences
Stuffing box cover shall be made of close-grained cast iron with integral
  stuffing box.
Rod packing is generally a series of rings held in place in the stuffing box by
  a packing gland or disk.
Many pumps have a stuffing box to prevent leakage along the drive shaft from
  the pump to the engine or motor.
The drive shaft penetrates the pressure boundary through a stuffing box.
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