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   Pace·mak·er

   /ˈpāsˌmākər/

   

   noun

   • 1. an artificial device for stimulating the heart muscle and regulating its contractions.
   • ▪ the part of the heart muscle (the sinoatrial node) that normally performs this role.
   • ▪ the part of an organ or of the body that controls any other rhythmic physiological activity.
   • 2. another term for pacesetter

   Derivatives

   • 1. pacemaking adjective

   Scrabble Points: 19

   • P

     3

   • A

     1

   • C

     3

   • E

     1

   • M

     3

   • A

     1

   • K

     5

   • E

     1

   • R

     1

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