attenuator

[ uh-ten-yoo-ey-ter ]
/ əˈtɛn yuˌeɪ tər /

noun Electronics.

a device for decreasing the amplitude of an electronic signal.

Origin of attenuator

First recorded in 1920–25; attenuate + -or2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for attenuator

attenuator
/ (əˈtɛnjʊˌeɪtə) /

noun

physics any device designed to reduce the power of a wave or electrical signal without distorting it
a person or thing that attenuates
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