rheoscopic
/ˌriːəˈskɒpɪk/Electricity
adjective
Designating a preparation of a muscle and attached nerve of a frog used for detecting electric currents; of or relating to such a preparation; especially in rheoscopic frog. Compare physiological rheoscope. Now historical.
Origin
Mid 19th century. From rheo- + -scopic. Compare earlier rheoscope.