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dispersal

American  
[dih-spur-suhl] / dɪˈspɜr səl /

noun

  1. dispersion.


dispersal British  
/ dɪˈspɜːsəl /

noun

  1. the act of dispersing or the condition of being dispersed

  2. the spread of animals, plants, or seeds to new areas

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of dispersal

First recorded in 1815–25; disperse + -al 2

Explanation

Dispersal is the act of spreading something around. This could be positive (like a dispersal of money) or negative (like a dispersal of a crowd because of a bomb). If you know that dispersing is when something spreads out or separates, then you have a headstart to understanding dispersal. Dispersal causes something to be diffused or disseminated, like the dispersal of seeds in a garden. A strong wind could cause the dispersal of someone’s homework. A tear gas bomb causes the dispersal of tear gas, which in turn will cause the dispersal of a crowd. Anytime something is spreading out or becoming widespread, there's a dispersal at play.

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Vocabulary lists containing dispersal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Amid a global biodiversity crisis, birds -- which play a vital role in pollination, seed dispersal and controlling insect populations -- are one of the fastest declining groups.

From Barron's • May 20, 2026

A total of 24 children are now on a "watchlist" and officers are using dispersal notices to ban troublemakers from the city centre.

From BBC • May 7, 2026

They also denied hearing any dispersal orders or warnings before they were injured.

From Los Angeles Times • May 5, 2026

"This is largely because oil floats, so the dispersal of oil remains on the surface and doesn't really interact with corals except in the most shallow areas," Burt said.

From Barron's • Mar. 17, 2026

Barley has the further advantage that its genetics and morphology permit it to evolve quickly the useful changes in seed dispersal and germination inhibition that we discussed in the preceding chapter.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond

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