ANECHOIC
Meaning of ANECHOIC in English
transcription, транскрипция: [ ˌa-ni-ˈkō-ik ]
adjective
Date: 1946
: free from echoes and reverberations
an anechoic chamber
Merriam-Webster's Collegiate English vocabulary.
Энциклопедический словарь английского языка Merriam Webster.
2003