double fluid battery

A galvanic battery in which two fluids are used as exciting liquids. They are kept apart by a porous cup, as in the Daniell's battery, or by gravity, as in Callaud's. Daniell was 2. A representation, as in the national arms of the inventor of this form of battery, and received Ru ia and Austria, of an eagle with two heads. double-edged, a . 1. Lit .: Having two edges. "Your Delphic sword, the Panther then replied, Is double- edged , and cuts on either side."" Dryden: Hind and Panther , iii. 191, 192. 2. Fig .: Acting in two ways, as an argument which makes both for and against the person using it; cutting two ways.