I. ˈhed.ərəˌdīn, ˈhetər-, ˈhe.tr- adjective
Etymology: heter- + dyne
: of or relating to the production of an electrical beat between two radio frequencies one of which usually is that of a received signal-carrying current and the other that of an uninterrupted current introduced into the apparatus — compare superheterodyne
II. transitive verb
( -ed/-ing/-s )
: to combine (a radio frequency) with a different frequency so that a beat is produced
a low value of signal frequency (generally about 100 kc), which is subsequently multiplied and heterodyned to produce the desired carrier frequency — Radio Corp. of American Review