扩散

kuò sàn

to spread; to proliferate; to diffuse

HSK 6

Character Breakdown

Understanding 扩散 (kuòsàn)

The word 扩散 means 'to spread' or 'to diffuse' and is commonly used to describe the physical or metaphorical spreading of something, such as viruses, information, or light. It combines the characters (expand) and (scatter), emphasizing the idea of something expanding and dispersing.

Usage in Context

  1. Physical spreading: Often used in scientific or health contexts, such as viruses or gases spreading in the air.
  2. Information dissemination: Commonly used to describe how news or rumors spread quickly, especially on social media.
  3. Light or particles: Used in physics to describe diffusion or scattering of light or particles.

Common Collocations

  • 扩散速度 (kuòsàn sùdù): spreading speed, used to discuss how fast something spreads.
  • 信息扩散 (xìnxī kuòsàn): information diffusion, often in media or communication contexts.
  • 扩散范围 (kuòsàn fànwéi): range of diffusion, describing the extent of spreading.

Nuances and Tips

  • 扩散 often implies a somewhat uncontrolled or natural spreading process.
  • It is more formal and technical than simply saying 传播 (chuánbō), which also means 'to spread' but can be used more broadly.
  • Avoid confusing 扩散 with 扩大 (kuòdà), which means 'to enlarge' or 'to expand' but does not imply scattering or diffusion.

Using 扩散 correctly helps convey the idea of something spreading out widely and often rapidly, whether it be physical substances, information, or light.

Example Sentences

病毒在空气中快速扩散,大家要注意防护。

Bìngdú zài kōngqì zhōng kuàisù kuòsàn, dàjiā yào zhùyì fánghù.

The virus spreads quickly in the air, everyone should take precautions.

这条新闻在社交媒体上迅速扩散,引起了广泛关注。

Zhè tiáo xīnwén zài shèjiāo méitǐ shàng xùnsù kuòsàn, yǐnqǐle guǎngfàn

This news spread rapidly on social media, attracting widespread attention.

光线通过棱镜后发生扩散,形成美丽的彩虹。

Guāngxiàn tōngguò léngjìng hòu fāshēng kuòsàn, xíngchéng měilì de cǎihóng.

Light diffuses after passing through the prism, forming a beautiful rainbow.