superheterodyne adjective & noun. [su:pǝ'hɛt(ǝ)rǝdʌɪn, sju:-] E20.
[from SUPER(SONIC adjective + HETERODYNE adjective, noun.]
Electrical Engineering.
A. adjective. Employing or involving a method of radio and television reception in which the receiver produces a tunable signal which is combined with the incoming signal to produce a predetermined, often ultrasonic, intermediate frequency, on which most of the amplification is performed. E20.
b. noun. A superheterodyne receiver. E20.

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