The story
It was invented in 1836 by John Frederic Daniell, a British chemist and meteorologist.
Etymology from Wiktionary, CC BY-SA 4.0.
Daniell cell
Today it means: An early battery consisting of a copper pot filled with a copper sulphate solution, in which was immersed an unglazed earthenware container filled with sulphuric acid and a zinc electrode. Full definition →