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

• disbandment
• dispersal
• dissipation
• scattering

Examples of dispersion in a Sentence

the dispersion of energy from a source

Recent Examples on the Web

Its specialists have developed an ultrafine dispersion solution of graphene with excellent fluidity along with electrical and thermal conductivity. —Nadezhda Kosareva, Forbes, 30 Dec. 2024

Interestingly enough, because of the adaptive way TRPV1 receptors work in birds, capsaicin may register as a pleasant vanilla flavor that incentivizes seed dispersion, according to the European Journal of Pharmacology. —Amiah Taylor, Discover Magazine, 13 Nov. 2024

Courtesy the artist and Hesse Flatow, New York City Chorus, a mixed-media artwork (acrylic dispersion, pigment, chalk, and pencil on unstretched canvas) by Ella Walker, whose work was on view last month at Casey Kaplan Gallery, in New York City. —Rafil Kroll-Zaidi, Harper's Magazine, 2 May 2024

Other merits from the global dispersion of the Indian workforce include the economic gains from an increase in remittances, Kumar added. —Amala Balakrishner, CNBC, 28 Nov. 2024

Word History

Etymology

see disperse

First Known Use

14th century, in the meaning defined at sense 1

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