noun co·dec \ˈkō-ˌdek\

Definition of codec

  1. :  a device or software system that can digitize and often compress an audio or video signal for transmission (as over a telephone line) and convert an incoming signal to audio or video for reception To permit satellite communication through such a compact antenna, an electronic device called a voice coder-decoder—or codec—translates speech into a digital signal. — Discover

Origin and Etymology of codec

coder + decoder

First Known Use: 1967

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