noun
the act of making formal (as by stating formal rules governing classes of expressions)
• Syn: ↑formalisation
• Derivationally related forms: ↑formalise (for: ↑formalisation), ↑formalize
• Hypernyms: ↑systematization, ↑systematisation, ↑rationalization, ↑rationalisation
Useful english dictionary. 2012.