Definition of pacemaker
English to English noun - a leading instance in its field
The new policy will be a pacesetter in community relations.
source: WordNet 3.0 - a specialized bit of heart tissue that controls the heartbeat
source: WordNet 3.0 - an implanted electronic device that takes over the function of the natural cardiac pacemaker
source: WordNet 3.0 - a horse used to set the pace in racing
source: WordNet 3.0
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