変質

(1)undergo a change; become different in essence; losing one's or its original nature; "She changed completely as she grew older"; "The weather changed last night"

(2)変化する

(3)本質において異なるようになった

(4)人のまたはその元の本質を失う

(5)change in outward structure or looks; "He transformed into a monster"; "The salesman metamorphosed into an ugly beetle"

(6)外向きの構造または見た目における変更

(7)alter the nature of (elements)

(8)（要素）の特性を変更する