anechoic

[ an-e-koh-ik ]
/ ˌæn ɛˈkoʊ ɪk /

adjective

(of a recording chamber, television studio, or the like) characterized by an unusually low degree of reverberation; echo-free.

Origin of anechoic

First recorded in 1945–50; an-1 + echoic

British Dictionary definitions for anechoic

anechoic
/ (ˌænɪˈkəʊɪk) /

adjective

having a low degree of reverberation of sound an anechoic recording studio