扩散
kuòsànTraditional 擴散
to spread; to diffuse
Every meaning
kuòsàn
- to spread; to diffuse
- (med.) to metastasize
Its characters
Words with 扩
Words with 散
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).