Pronunciation: (dē-em'fu-sis),[key] —n., —pl.-sesPronunciation: (-sēz").[key] 1. a reduction in emphasis: There has been de-emphasis on athletic activities at the school. 2. the act or process of de-emphasizing.
3. Electronics.a process of reducing the relative amplitude of certain frequencies in a signal that have been exaggerated by preemphasis, restoring the signal to its original form. Also,de•em'pha•sis.