形けい成せい期きMeaningsNoun1. formative period (e.g. of nation); formative yearKanji used形shape成become期period (of time)Composed of形けい成せいformation; molding; making (up); taking form; giving form to; repair (e.g. with plastic surgery); replacement; -plastyNoun期きperiod; time; opportunity; chance; occasion; age; term (e.g. in office); session (e.g. of parliament); stage (e.g. of a disease); season (e.g. of a TV series)Noun