Dictionary
pulse'-am'pli•tude modula"tion
Pronunciation: (puls'am'pli-tOOd", -tyOOd"), [key] Telecommunications.
modulation of the amplitude of a train of electric pulses used to carry signals
(pulse' car"rier). Abbr.: PAM
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.