Daniell cell
noun
Dan·iell cell
ˈdanyəl-
: a primary cell with a constant electromotive force of about 1.1 volts having as its electrodes copper in a copper sulfate solution and zinc in dilute sulfuric acid or zinc sulfate, the two solutions being separated by a porous partition
Word History
Etymology
after John F. Daniell †1845 English chemist and physicist, its inventor