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crosshead

[kraws-hed, kros-] /ˈkrɔsˌhɛd, ˈkrɒs-/
noun
1.
Printing. a title or heading filling a line or group of lines the full width of the column.
2.
Machinery. a sliding member of a reciprocating engine for keeping the motion of the joint between a piston rod and a connecting rod in a straight line.
3.
Nautical. a crosspiece on a rudderpost by which the rudder is turned.
4.
Engineering, Building Trades. a transverse timber for transmitting the lifting effort of two or more jackscrews supporting it to the foot of a shore that it supports.
Compare shore2 (def 1).
Origin
1835-1845
1835-45; cross- + head
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for crosshead
  • The piston, crosshead, and crank rings are located in the propeller hub.
British Dictionary definitions for crosshead

crosshead

/ˈkrɒsˌhɛd/
noun
1.
(printing) a subsection or paragraph heading printed within the body of the text
2.
a block or beam, usually restrained by sliding bearings in a reciprocating mechanism, esp the junction piece between the piston rod and connecting rod of an engine
3.
(nautical) a bar fixed across the top of the rudder post to which the tiller is attached
4.
a block, rod, or beam fixed at the head of any part of a mechanism
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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