propagation

noun
prop·​a·​ga·​tion | \ ˌprä-pə-ˈgā-shən How to pronounce propagation (audio) \

Definition of propagation

: the act or action of propagating: such as
a : increase (as of a kind of organism) in numbers
b : the spreading of something (such as a belief) abroad or into new regions
c : enlargement or extension (as of a crack) in a solid body

Examples of propagation in a Sentence

Recent Examples on the Web People tend to think of gossip as synonymous with malicious rumors, put-downs or the breathless propagation of a tabloid scoop. Sophia Gottfried, Time, "The Science Behind Why People Gossip—And When It Can Be a Good Thing," 25 Sep. 2019 Michael Baiada, a longtime airline pilot and now president of airline management solutions company ATH Group, said managing delay propagation currently happens at too local a level to manage wider ripple effects. Tracey Lindeman, Fortune, "Can Technology Save the Air Travel Industry From Its Delay Problem?," 13 Dec. 2019 If given a steady food supply, squirrels and other critters that depended on nuts would flourish to levels that threaten tree propagation. Colin Moore, Outdoor Life, "Hunting With Dogs is the Best Way to Bag Late-Winter Squirrels," 15 Jan. 2020 Bo Zou, a transportation engineer and professor at the University of Illinois at Chicago who studies delay propagation in air travel, said that approach can expose airports to greater congestion and delay challenges. Tracey Lindeman, Fortune, "Can Technology Save the Air Travel Industry From Its Delay Problem?," 13 Dec. 2019 Devin Nunes has given himself over to the search for and propagation of wild conspiracy theories, which, by the way, at their source are about Russian intelligence. CBS News, "Transcript: Rep. Jim Himes on "Face the Nation," November 24, 2019," 24 Nov. 2019 Columbus has become an ethnic symbol for Italian Americans, and likewise is an icon to many Catholics, who admire his devotion to and propagation of the faith. John Hirschauer, National Review, "A Defense of Christopher Columbus on Columbus Day," 14 Oct. 2019 State statutes dictate how the stamp revenue must be used, including 67% of funds dedicated to projects in Wisconsin and 33% for waterfowl propagation areas in Canada to benefit birds that migrate through Wisconsin. Paul A. Smith, Milwaukee Journal Sentinel, "Bill on deck to raise price of Wisconsin waterfowl stamp," 7 Sep. 2019 Every decade or so, the trees turn out more seeds to ensure future propagation as a hedge against hungry predators and whatever other hurdles nature might throw at the species. Washington Post, "Fire-ravaged forests get help from pine cone collectors," 27 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'propagation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of propagation

15th century, in the meaning defined above

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Time Traveler for propagation

Time Traveler

The first known use of propagation was in the 15th century

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Statistics for propagation

Last Updated

29 Feb 2020

Cite this Entry

“Propagation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/propagation. Accessed 8 Apr. 2020.

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More Definitions for propagation

propagation

noun
prop·​a·​ga·​tion | \ ˌprä-pə-ˈgā-shən How to pronounce propagation (audio) \

Kids Definition of propagation

: the act or process of causing to multiply or spread out the propagation of ideas

propagation

noun
prop·​a·​ga·​tion | \ ˌpräp-ə-ˈgā-shən How to pronounce propagation (audio) \

Medical Definition of propagation

: the act or action of propagating: as
a : increase (as of a kind of organism) in numbers propagation of a pure culture of bacteria
b : the spreading or transmission of something propagation of a nerve impulse

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