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passband

[pas-band, pahs-]
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noun Radio and Television.
  1. the range of frequencies that pass with a minimum of attenuation through an electronic filter.
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Origin of passband

First recorded in 1920–25; pass + band2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for pass band

pass band

noun
  1. the band of frequencies that is transmitted with maximum efficiency through a circuit, filter, etc
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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