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Word of the Day
Wednesday, October 16, 2013

Definitions for pinion

  1. Machinery. A. a gear with a small number of teeth, especially one engaging with a rack or larger gear. B. a shaft or spindle cut with teeth engaging with a gear.
  2. Metalworking. a gear driving a roll in a rolling mill.

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Citations for pinion
"Replace the crank pinion," Slade called over his shoulder, "and put it on the USC account." Richard Walter, Escape from Film School, 1999
He was like a wondrous machine, the minister marveled, muscle and bone in place of crank and pinion. Karl Iagnemma, The Expeditions, 2007
Origin of pinion
Pinion comes from the classical Latin pectin meaning "comb." It came to English in the mid-1600s.