sto·​chas·​tic | \ stə-ˈka-stik How to pronounce stochastic (audio) , stō- \

Definition of stochastic

1 : random specifically : involving a random variable a stochastic process
2 : involving chance or probability : probabilistic a stochastic model of radiation-induced mutation

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Other Words from stochastic

stochastically \ stə-​ˈka-​sti-​k(ə-​)lē How to pronounce stochastically (audio) \ adverb

Examples of stochastic in a Sentence

Recent Examples on the Web This was not planned, but was rather the result of myriad colliding stochastic evolutions: state formation and the state’s monopoly over violence, urbanization, the growing differentiation of occupations in increasingly complex economies. Aaron Timms, The New Republic, "Privacy Policy," 27 Jan. 2020 And words about these events, from polar vortex to stochastic terrorism to exonerate, were top searches and trends on Christian Holub,, " names 'existential' as word of the year," 2 Dec. 2019 This happens because, in each iteration of stochastic gradient descent, more or less accidental correlations in the training data tell the network to do different things, dialing the strengths of its neural connections up and down in a random walk. Quanta Magazine, "New Theory Cracks Open the Black Box of Deep Learning," 21 Sep. 2017 The stochastic Turing mechanism potentially addresses both questions. Jennifer Ouellette, Quanta Magazine, "A Math Theory for Why People Hallucinate," 30 July 2018 That led Impossible to implement a new planning system, stochastic modeling, that factors in large fluctuations in demand. CNN, "Impossible made fake meat a hot commodity. Now it could be a victim of its own success," 27 June 2019 Elowitz’s team is now examining the role stochastic gene expression plays in stem cells, undifferentiated cells that give rise to the different tissues in our bodies. Quanta Magazine, "Inside the Din, Cells Fight Noise With Noise," 22 May 2014 The team used the standard machine learning technique of stochastic gradient descent to iteratively improve the two networks. Timothy B. Lee, Ars Technica, "Google researchers created an amazing scene-rendering AI," 29 June 2018 Random, stochastic mutations allow species to diversify. Diana Gitig, Ars Technica, "Evolution experiment has now followed 68,000 generations of bacteria," 22 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'stochastic.' 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 stochastic

1934, in the meaning defined at sense 1

History and Etymology for stochastic

Greek stochastikos skillful in aiming, from stochazesthai to aim at, guess at, from stochos target, aim, guess — more at sting

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Time Traveler for stochastic

Time Traveler

The first known use of stochastic was in 1934

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Statistics for stochastic

Last Updated

7 Feb 2020

Cite this Entry

“Stochastic.” Dictionary, Merriam-Webster, Accessed 19 Feb. 2020.

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More Definitions for stochastic


sto·​chas·​tic | \ stə-ˈkas-tik How to pronounce stochastic (audio) , stō- How to pronounce stochastic (audio) \

Medical Definition of stochastic

1 : involving a random variable a stochastic process
2 : involving chance or probability a stochastic model of radiation-induced mutation

Other Words from stochastic

stochastically \ -​ti-​k(ə-​)lē How to pronounce stochastically (audio) \ adverb

More from Merriam-Webster on stochastic

Rhyming Dictionary: Words that rhyme with stochastic

Britannica English: Translation of stochastic for Arabic Speakers

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