Zinc is princ.i.p.ally used in electrical work as the positive plate in voltaic batteries.
Zincode.
The terminal connecting with the zinc plate, or its equivalent in an electric circuit; the negative electrode; the kathode. A term now little used.
Zinc Sender.
An apparatus used in telegraphy for sending a momentary reverse current into the line after each signal, thus counteracting r.e.t.a.r.dation.
Zone, Peripolar.
In medical electricity, the region surrounding the polar zone, q. v.
Zone, Polar.
In medical electricity, the region surrounding the electrode applied to the human body.