wrist pin
- noun
- /rɪst pɪn/
- Specialized
:
pasador de muñeca
- To ensure the engine runs smoothly, check that the wrist pin is securely attached to the piston.
Examples
-
If you say there's a weakness on the new wrist pin on engine four... you have a valid reason for not taking off.
-
The mechanic replaced the worn-out wrist pin to improve the engine's performance.
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During the repair, the technician noticed that the wrist pin was damaged and needed replacement.
Synonyms
A metal pin that joins the piston to the connecting rod in an engine so the piston can turn slightly
Surface Forms
Morphology
The meaning is directly derivable from the constituents: 'wrist' specifies the location and 'pin' names a small fastener, so 'wrist pin' naturally denotes a pin used in the wrist. Although the term is medical/technical, its compositional logic is transparent and would be understandable to a B1 learner who knows both words.
Etymology
Wrist pin may come from the way a small metal pin works like a human wrist: it lets the piston and rod turn together, so it 'connects' them. That's why it refers to the pin that links the piston and rod inside an engine.
