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Word: pacemaker (lookup usage) (lookup stats)


Meaning:

Noun:

  • anatomy A set of nerves which stimulate the heart to beat.
  • hence|medical A medical implement that is used to stimulate a heart to beat by simulating the action of the natural pacemaker.
  • One who sets the pace in a race, to guide the others.

Source: Wiktionary | Src Info »