cymometer
Cy*mom"e*ter, n. [Gr. wave -meter.] Defn: An instrument for exhibiting and measuring wave motion; specif. (Elec.), Defn: an instrument for determining the frequency of electic wave oscillations, esp. in connection with wireless telegraphy.
Cy*mom"e*ter, n. [Gr. wave -meter.] Defn: An instrument for exhibiting and measuring wave motion; specif. (Elec.), Defn: an instrument for determining the frequency of electic wave oscillations, esp. in connection with wireless telegraphy.