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 As a second step, the data signal is stretched in time by the propagation through a dispersive fiber which reduces its analog bandwidth to fit within that of the digitizer. Stephen Ibaraki, Forbes, 12 July 2022 But there is an easier, cheaper way to grow new houseplants: propagation, or the process of growing a new plant from a piece of a mature one. Washington Post, 13 Oct. 2021 The researchers’ model takes into account the propagation of the shock waves and other factors. Jamie Carter, Forbes, 29 June 2022 These grasslands and how they’re managed by the tribes with traditional ecological knowledge will help in the propagation, protection, and enhancement of the buffalo herds that are within the park system. Emily Pennington, Outside Online, 16 June 2022 These witnesses have very relevant testimony to offer in terms of what went into the violence of January 6, the propagation of the big lie, and the idea that witnesses could simply fail to show up. CBS News, 5 June 2022 In addition to this curated ocean excursion, my wife and I got to custom-caption a plaque that will be permanently affixed to the coral propagation unit in commemoration of our daughter's mini coral colony. Ross Kenneth Urken, Travel + Leisure, 8 June 2022 Notably, this kind of clonal propagation has made for even older organisms, like a turtlegrass estimated to be about 6000 years old. Margaret Osborne, Smithsonian Magazine, 3 June 2022 These eight monitored populations are supported by more than 30 artificial propagation programs along the Columbia River and its tributaries. ProPublica, 24 May 2022 See More

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.

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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Dictionary Entries Near propagation

propagating pit



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Statistics for propagation

Last Updated

31 Jul 2022

Cite this Entry

“Propagation.” Dictionary, Merriam-Webster, Accessed 10 Aug. 2022.

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More Definitions for propagation


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


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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