noun
: modulation of the frequency of the carrier wave in accordance with speech or a signal ; specifically : the system of broadcasting using this method of modulation — abbr. FM ; compare amplitude modulation
noun
: modulation of the frequency of the carrier wave in accordance with speech or a signal ; specifically : the system of broadcasting using this method of modulation — abbr. FM ; compare amplitude modulation
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012