Function: noun
Date: 1923
: an apparatus including a microphone and loudspeakers used for broadcasting (as to an audience in an auditorium)
Function: noun
Date: 1923
: an apparatus including a microphone and loudspeakers used for broadcasting (as to an audience in an auditorium)
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012