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

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