also quadriphonic adjective Etymology: irregular from quadri- + -phonic (as in stereophonic) Date: 1969 of, relating to, or using four channels for the transmission, recording, or reproduction of sound, ~s or quadriphonics noun plural but singular in construction
QUADRAPHONIC
Meaning of QUADRAPHONIC in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012