n. an instrument used in listening to the action of the heart, lungs, etc., usu. consisting of a circular piece placed against the chest, with tubes leading to earpieces.
Derivatives:
stethoscopic adj. stethoscopically adv. stethoscopist n. stethoscopy n.
Etymology: F st{eacute}thoscope f. Gk stethos breast: see -SCOPE