The British spelling of electrolization; the process of using electrical current to break down a chemical compound into its component parts.
From 'electrolyse' (British) with '-ation' suffix. British convention uses '-ise' verbs that become '-isation' nouns, while American English prefers '-ize' and '-ization'.
Electrolysation is how we separate salt water into hydrogen gas and chlorine gas—the hydrogen can become fuel, and the chlorine becomes bleach and disinfectant, meaning electricity is literally reshaping the chemistry of matter.
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