[1] : WordNet (r) 2.0

cardiac pacemaker
     n : a specialized bit of heart tissue that controls the
         heartbeat syn: pacemaker, sinoatrial node, sa node
see also:
pacemaker sinoatrial node sa node 

Cardiac >> C Words
Cardiac, definition of term: Cardiac
cardiac_pag1.html

Pacemaker >> P Words
Pacemaker, definition of term: Pacemaker
pacemaker_pag1.html

Cardiac Sphinct >> C Words
Cardiac Sphinct, definition of term: Cardiac Sphinct
cardiac+sphinct_pag1.html

Cardiac Cycle >> C Words
Cardiac Cycle, definition of term: Cardiac Cycle
cardiac+cycle_pag1.html

Cardiac Arrest >> C Words
Cardiac Arrest, definition of term: Cardiac Arrest
cardiac+arrest_pag1.html

Cardiac Muscle >> C Words
Cardiac Muscle, definition of term: Cardiac Muscle
cardiac+muscle_pag1.html