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.
Propagating Summer Crush Hydrangea Summer Crush hydrangea is patent-protected and prohibited from propagation in any form. Steve Bender, Southern Living, 9 June 2026 The company’s claim is that MST modifies the mechanical stress state of the silicon surface in a way that discourages dislocation nucleation and propagation during the subsequent GaN growth steps. Aditya Jadhav, Interesting Engineering, 8 June 2026 Some varieties are better than others for this style of propagation, such as pothos and philodendron. Melissa Epifano, The Spruce, 8 June 2026 Ace Reputation’s models are trained not just to recognize explicit falsehoods, but to identify subtler distortions - context shifts, narrative framing, and the early signals of viral propagation, Gaurav claims. Wyles Daniel may 19, Miami Herald, 19 May 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 17 Jun. 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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