Bible Dictionaries
Sphygmophone

Webster's Dictionary

(n.) An electrical instrument for determining by the ear the rhythm of the pulse of a person at a distance.

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