WordReference Random House Unabridged Dictionary of American English © 2025
pre•em•pha•sis
(prē em′fə sis),USA pronunciation n. [Electronics.]
- Electronicsa process of increasing the amplitude of certain frequencies relative to others in a signal in order to help them override noise, complemented by deemphasis before final reproduction of the signal being received.
- pre- + emphasis 1940–45
'preemphasis' also found in these entries (note: many are not synonyms or translations):