propagation

noun

prop·​a·​ga·​tion ˌprä-pə-ˈgā-shən How to pronounce propagation (audio)
Synonyms of propagationnext
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Sociologists need to take up public space and be resources for these national battles over our culture, education, book bans, the propagation of alternative facts, etc. Megan Thiele Strong, Chicago Tribune, 16 Mar. 2026 In addition to streamlining herbicide application, the legislation would promote education about invasive propagation with signs at boat launches and instruct DEEP to develop a plant to install boat washing stations at state boat ramps. Edmund H. Mahony, Hartford Courant, 14 Mar. 2026 Healthy plants are key to successful propagation; avoid diseased or stressed plants. Derek Carwood, Better Homes & Gardens, 10 Mar. 2026 Division Propagation The easiest and fastest propagation method is division, says Singh. Sj McShane, Martha Stewart, 10 Mar. 2026 See All Example Sentences for propagation

Word History

First Known Use

15th century, in the meaning defined above

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

Browse Nearby Words

Cite this Entry

“Propagation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/propagation. Accessed 22 Mar. 2026.

Kids Definition

propagation

noun
prop·​a·​ga·​tion ˌpräp-ə-ˈgā-shən How to pronounce propagation (audio)
: the act or process of propagating: as
a
: multiplication (as of a kind of living thing) in number of individuals
b
: the spreading of something (as a belief) abroad or into new regions

Medical Definition

propagation

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