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diffusion

Intermediate (B1)

IPA: /dɪˈfjuːʒən/

KK: /dɪˈfjuːʒən/

noun
Definition

The process by which particles spread out from an area of high concentration to an area of low concentration, often occurring in gases and liquids.


Example

The diffusion of perfume in the air can be noticed even from a distance.


Conversation
Sloth A
Have you learned about diffusion in science class yet?
Sloth B
Yeah, it’s really interesting how particles mix together like that.
Sloth A
I find it fascinating, especially how it applies to different materials.
Sloth B
Totally! It’s amazing to see how diffusion works in everyday life.

Synonyms & Antonyms
Synonyms
dispersal
spread
distribution
Antonyms
concentration
gathering
collection
Root Explanation

Diffusion is formed from "dis-" (meaning apart) and "fundere" (meaning to pour). The word describes the process of something being poured out or spread apart in different directions.

Memory Tip

Think of something being 'poured apart' — 'dis-' means apart, and 'fundere' means to pour. This helps you remember that diffusion refers to the spreading out of substances.

Visually Confused Words
demifusion
infusion
effusion
defusion
affusion
vividiffusion
autodiffusion
fusion
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