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polydispersity

Upper-Intermediate (B2)

IPA: /ˌpɒlɪˈdɪspəˌsɪti/

KK: /pɑːlɪˈdɪspərsɪti/

noun
Definition

A measure of how varied the sizes of particles are in a mixture or solution.


Example

The polydispersity of the sample indicates a wide range of particle sizes.


Conversation
Sloth A
Have you ever heard about the concept of polydispersity in materials science?
Sloth B
Yeah, I think it has to do with the variety in particle sizes, right?
Sloth A
Exactly! It’s a measure of how varied the sizes are in a mixture.
Sloth B
That's interesting! It must really affect how those materials behave.

Synonyms & Antonyms
Synonyms
diversity
variation
heterogeneity
Antonyms
uniformity
homogeneity
consistency
Root Explanation

Polydispersity → It is formed from "poly-" (meaning many) and "dispersus" (from Latin, meaning scattered or spread out) and the suffix "-ity" (meaning the state or condition of). The word "polydispersity" refers to the condition of having many different sizes or distributions within a sample.

Memory Tip

Think of 'many' ('poly-') things that are 'scattered' ('dispersus') to remember that polydispersity means a variety of sizes or distributions.

Visually Confused Words
dispersity
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