Bible Dictionaries
Cymometer

Webster's Dictionary

(1):

(n.) An instrument for exhibiting and measuring wave motion

(2):

(n.) an instrument for determining the frequency of electic wave oscillations, esp. in connection with wireless telegraphy.

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