dispersion

noun

dis·​per·​sion di-ˈspər-zhən 

-shən

1

capitalized Judaism : diaspora sense 1b

2

: the act or process of dispersing : the state of being dispersed

crowd dispersion

3

mathematics : the scattering of the values of a frequency distribution from an average

4

physics : the separation of light into colors by refraction or diffraction with formation of a spectrum

also : the separation of radiation (see radiation sense 2) into components in accordance with some varying characteristic (such as energy)

5

chemistry

a

: a dispersed (see disperse sense 2c) substance

b

: a system (see system sense 1a(2)) consisting of a dispersed substance and the medium in which it is dispersed : colloid sense 2b

Synonyms

• dispersal
• scattering

Examples of dispersion in a Sentence

the dispersion of energy from a source

Recent Examples on the Web

By integrating all relevant data into one place, response times are optimized and the dispersion of information across multiple platforms is avoided. —Jose Luis Gonzalez Rodriguez, Forbes.com, 12 June 2025

The state could take advantage of technological trends — remote work, for example — to allow for more population dispersion. —Joel Kotkin, The Mercury News, 22 Feb. 2025

Their familiarity with Iberian language and culture, combined with the dispersion of their community, positioned them to participate in the new global economy: trade in sugar, textiles, spices – and the trade in human lives, Atlantic slavery. —Flora Cassen, The Conversation, 27 June 2025

The standard deviation measures price volatility, so the bands widen during periods of high volatility and contract during periods of low volatility, visually representing the dispersion of prices around the mean. —Michael Khouw, CNBC, 23 June 2025

Word History

Etymology

see disperse

First Known Use

14th century, in the meaning defined at sense 1

Rhymes for dispersion

• aspersion
• aversion
• conversion
• diversion
• eversion
• excursion
• immersion
• incursion
• inversion
• perversion
• recursion
• reversion

Kids Definition

dispersion

noun

dis·​per·​sion dis-ˈpər-zhən 

1

: the act or process of dispersing : the state of being dispersed

2

: the separation of light (as by a prism) into a series of colors

dispersive

-ˈpər-siv

-ziv

adjective

Medical Definition

dispersion

noun

dis·​per·​sion dis-ˈpər-zhən, -shən 

1

: the act or process of dispersing : the state of being dispersed

2

: the separation of light into colors by refraction or diffraction with formation of a spectrum

also : the separation of radiation into components in accordance with some varying characteristic (as energy)

3

a

: a dispersed substance

b

: a system consisting of a dispersed substance and the medium in which it is dispersed : colloid sense 2b

called also disperse system