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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
1650-1660
Pinion comes from the classical Latin pectin meaning "comb." It came to English in the mid-1600s.