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high-pass filter

[hahy-pas]
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noun Electricity, Electronics.
  1. a filter that allows high-frequency electromagnetic signals to pass while rejecting or attenuating others below a specific value.
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Also called low-cut filter [loh-kuht] /ˈloʊˈkʌt/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for high-pass filter

high-pass filter

noun
  1. electronics a filter that transmits all frequencies above a specified value, substantially attenuating frequencies below this valueCompare low-pass filter, band-pass filter
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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