Anechoic

Origin

From - + echoic, from echo + -ic, from Middle English ecco, ekko, from Medieval Latin ecco, from Latin echo, from Ancient Greek ἠχώ, from ἠχή ("sound").

Full definition of anechoic

Adjective

1. (acoustics) lacking echos; that absorbs soundThe bassoonist settled into the anechoic chamber and prepared for another grueling recording session.