verb (used with object), dispersed, dispersing.
to drive or send off in various directions; scatter: to disperse a crowd.
to spread widely; disseminate: to disperse knowledge.
to dispel; cause to vanish: The wind dispersed the fog.
Physical Chemistry. to cause (particles) to separate uniformly throughout a solid, liquid, or gas.
Optics. to subject (light) to dispersion.
verb (used without object), dispersed, dispersing.
to separate and move apart in different directions without order or regularity; become scattered: The crowd dispersed.
to be dispelled; be scattered out of sight; vanish: The smoke dispersed into the sky.
Physical Chemistry. noting the dispersed particles in a dispersion.

1350–1400; Middle English dispersen, disparsen (< Middle French disperser) < Latin dispersus (past participle of dispergere), equivalent to di- di-2 + -sper(g)- scatter (stem of -spergere, combining form of spargere to scatter, strew) + -sus past participle suffix

dispersedly [dih-spur-sid-lee] , adverb
disperser, noun
dispersibility, noun
dispersible, adjective
predisperse, verb (used with object), predispersed, predispersing.
redisperse, verb, redispersed, redispersing.
undispersed, adjective
undispersing, adjective
well-dispersed, adjective

1. disperse, disburse ; 2. disperse, dispose.

1. See scatter. 2. sow, broadcast. 7. disappear, evanesce.

1. combine, collect.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
disperse (dɪˈspɜːs)
1.  to scatter; distribute over a wide area
2.  to dissipate or cause to dissipate
3.  to leave or cause to leave a gathering, often in a random manner
4.  to separate or be separated by dispersion
5.  (tr) to diffuse or spread (news, information, etc)
6.  to separate (particles) throughout a solid, liquid, or gas, as in the formation of a suspension or colloid
7.  of or consisting of the particles in a colloid or suspension: disperse phase
[C14: from Latin dispērsus scattered, from dispergere to scatter widely, from di-² + spargere to strew]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

mid-15c., from M.Fr. disperser "scatter," from L. dispersus, pp. of dispergere "to scatter," from dis- "apart, in every direction" + spargere "to scatter" (see sparse). The L. word is glossed in O.E. by tostregdan. Related: Dispersed; dispersing.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

disperse dis·perse (dĭ-spûrs')
v. dis·persed, dis·pers·ing, dis·pers·es

  1. To cause to separate and move in different directions; scatter.

  2. To cause to vanish or disappear.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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