
A rheoscope is an instrument for detecting or measuring currents, such as fluid currents or electric currents. The word rheoscope as a detector of electrical currents was coined by Sir Charles Wheatstone about 1840 but is no longer used to describe electrical instruments. ...
Found on
http://en.wikipedia.org/wiki/Rheoscope

• (n.) An instrument for detecting the presence or movement of currents, as of electricity.
Found on
http://thinkexist.com/dictionary/meaning/rheoscope/
Rhe'o·scope noun [ Greek
'rei^n to flow +
-scope .]
(Physics) An instrument for detecting the presence or movement of currents, as of electricity.
Found on
http://www.encyclo.co.uk/webster/R/75
No exact match found.