crosshead Meaning, Definition & Usage
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noun a heading of a subsection printed within the body of the text
crossheading.
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noun metal block that connects to a piston; it slides on parallel guides and moves a connecting rod back and forth
WordNet
Cross"head` noun
Definitions
(Mach.) A beam or bar across the head or end of a rod, etc., or a block attached to it and carrying a knuckle pin; as the solid crosspiece running between parallel slides, which receives motion from the piston of a steam engine and imparts it to the connecting rod, which is hinged to the crosshead.