• (n.) A metallic wire used for regulating the resistance of a circuit, or varying the strength of an electric current, by inserting a greater or less length of it in the circuit. Found on http://thinkexist.com/dictionary/meaning/rheochord/
Rhe'o·chord noun [ Greek 'rei^n to flow + ......... chord.] (Electricity) A metallic wire used for regulating the resistance of a circuit, or varying the strength of an electric current, by inserting a greater or less length of it in the circuit. Found on http://www.encyclo.co.uk/webster/R/75
1) Measuring instrument 
• (n.) A metallic wire used for regulating the resistance of a circuit, or varying the strength of an electric current, by inserting a greater or less length of it in the circuit.
Rhe'o·chord noun [ Greek