noun
: a two-way communication system with microphone and loudspeaker at each station for communicating within a limited area (as between offices in the same building or between operating stations on an airplane)
noun
: a two-way communication system with microphone and loudspeaker at each station for communicating within a limited area (as between offices in the same building or between operating stations on an airplane)
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012