Bible Dictionaries
Cardiograph

Webster's Dictionary

(n.) An instrument which, when placed in contact with the chest, will register graphically the comparative duration and intensity of the heart's movements.

Bibliography Information
Webster, Noah. Entry for 'Cardiograph'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​c/cardiograph.html. 1828.