noun
complete form; perfect form; final form
Used for something that has reached its ultimate, fully developed state, often in fiction, games, or biology.
このポケモンは進化して完全体になった。
This Pokémon evolved into its final form.
彼の計画はまだ完全体ではない。
His plan is not yet in its complete form.
noun
perfect field
Mathematics term for a field in which every algebraic extension is separable.
有限体は完全体の一例である。
A finite field is an example of a perfect field.