Word forms: (regular plural) big ends
(Automotive engineering: Vehicle components, Engine, transmission, and exhaust) A big end is the end of a connecting rod that engages with a crankshaft.
⇒ The top end of the connecting rod is called the small end, and the bottom end is called
the big end. ⇒ He crawled under the engine every 15 miles or so to examine the big end for overheating. ⇒ The engineer removed the sump and head, unbolted the big end caps and withdrew the pistons.
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