gudgeon pin
- noun
- /ˈɡədʒən pɪn/
- Specialized
:
pasador de gudgeon
- The mechanic installed the new gudgeon pin to ensure the piston could pivot smoothly.
Examples
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To connect the piston to the connecting rod, the technician used a high-quality gudgeon pin.
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During the engine repair, he carefully examined the gudgeon pin for wear and tear.
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But luckily everything can be saved by a device called a gudgeon pin remover.
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But, luckily, Cyril at the bike shop has this tool called a gudgeon pin remover... which should minimize damage to the bearing at either end of the con rod... or, God forbid, the con rod itself.
Synonyms
1
9.9
A pin or bolt that a door turns on
A small metal rod that joins a piston to the rod that moves it in an engine
A metal part like a pin that lets a door or gate turn
Surface Forms
Morphology
gudgeon + pin
This is a specialized mechanical term and the first constituent 'gudgeon' is rare or absent from general learner dictionaries, so a B1 learner would not know its technical sense; 'pin' is common but does not by itself convey the piston-connecting function. The overall meaning (a specific pivot/wrist pin in an engine) is technical and not predictable from everyday senses, so it would not be derivable by an average B1 learner knowing only the surface words.
Etymology
Gudgeon pin may come from the old word gudgeon, which meant a small peg or pivot, while pin means a short metal rod. It names the small rod that joins the piston to the rod and lets the piston 'pivot', so the name is a simple picture of the part's job.