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British Dictionary definitions for bypass ratio

bypass ratio

noun
  1. aeronautics the ratio of the amount of air that bypasses the combustion chambers of an aircraft gas turbine to that passing through them
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