退化
tuìhuà
to degenerate; to deteriorate
Every meaning
tuìhuà
- to degenerate; to deteriorate
- (biology) to atrophy; degeneration
Its characters
Words with 退
Words with 化
Meanings are from Mandarin The Wild’s own dictionary. Levels follow the official HSK word list (the exam’s 2025 syllabus, levels 7–9 shown together).