Wordnet 3.0
NOUN (1)
1.
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;
[syn: ballistocardiograph, cardiograph]
WordNet (r) 3.0 (2006):
ballistocardiograph
n 1: 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 [syn: ballistocardiograph, cardiograph]