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big end

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noun Machinery.
  1. the end of a connecting rod or piston rod that is attached to a crankpin.

Origin of big end

First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for big end

Historical Examples

  • That big-end story went the round of the camp too, you may be quite sure.

    Fanny Goes to War

    Pat Beauchamp


British Dictionary definitions for big end

big end

noun British
  1. Also called (in vertical engines): bottom end the larger end of a connecting rod in an internal-combustion engineCompare little end
  2. the bearing surface between the larger end of a connecting rod and the crankpin of the crankshaft
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