n.
1.medical instrument that records electric currents associated with contractions of the heart
2.a medical instrument that measures the mechanical force of cardiac contractions and the amount of blood passing through the heart during a specified period by measuring the recoil of the body as blood is pumped from the ventricles
Idiom of the Day
foul up (something) or foul (something) up
to do badly, to mess something up
There was a problem with our hotel reservations which fouled up our plans.