khok-suànn擴散

to spread

to spread; to diffuse; to proliferate; to scatter about; to diffuse; to spread; to metastasise

physicschemistrymedicine

English Wiktionary, “擴散” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E6%93%B4%E6%95%A3 · confidence: Medium (Wiktionary, Hokkien)