cau·​sal·​i·​ty | \ kȯ-ˈza-lə-tē How to pronounce causality (audio) \
plural causalities

Definition of causality

1 : a causal quality or agency
2 : the relation between a cause and its effect or between regularly correlated events or phenomena

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Examples of causality in a Sentence

Scientists found no causality between the events. a supreme being is a being that, by definition, has no causality of its own

Recent Examples on the Web

The study also pointed to an association between increasing eating red meat and subsequent mortality risk, but did not necessarily find causality. Jacqueline Howard, CNN, "Changing your meat-eating habits could mean a longer life, study suggests," 12 June 2019 Whether corollary or causality, this dip has coincided with the rise in importance of search firms in the hiring sphere. Brandon Lilly, Fortune, "First He Helped Recruit Michael Jordan to UNC, Now He’s the Go-To Scout—For College Basketball Coaches," 19 July 2019 But those numbers fluctuate without clear causality. Brent Schrotenboer, USA TODAY, "Two horses dead after freak accident while training at Del Mar track in California," 18 July 2019 The data fit many of the tests for causality, researchers say, but doesn’t prove that cannabis causes psychosis. Robert Mccoppin,, "As Illinois determines whether to limit potency of legalized pot, drug gets increased scrutiny after link to psychosis," 6 July 2019 The Palazzo Archinto's treasures were among the causalities. Meilan Solly, Smithsonian, "The Frick Revives 18th-Century Frescoes Destroyed During World War II," 3 July 2019 Yet Turok and colleagues argue partly on the grounds of causality that only real values of lapse make physical sense. Quanta Magazine, "Physicists Debate Hawking’s Idea That the Universe Had No Beginning," 6 June 2019 The link between poor diet and mood disorders has been long known, but what has been less clear is the direction of causality. Max Lugavere, CNN, "How your next meal could help fight depression and stress," 20 Mar. 2018 Heavy cannabis use has been associated with schizophrenia, but the direction of the causality (if any exists) hasn't been clear. John Timmer, Ars Technica, "Researchers ID genes that could make you more likely to try cannabis," 28 Aug. 2018

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

1603, in the meaning defined at sense 1

History and Etymology for causality

borrowed from Medieval Latin causālitāt- causālitās, from Late Latin causālis causal + Latin -itāt-, -itās -ity

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Statistics for causality

Last Updated

22 Aug 2019

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Time Traveler for causality

The first known use of causality was in 1603

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More Definitions for causality



English Language Learners Definition of causality

: the relationship between something that happens or exists and the thing that causes it
: the idea that something can cause another thing to happen or exist


cau·​sal·​i·​ty | \ kȯ-ˈza-lə-tē How to pronounce causality (audio) \
plural causalities

Legal Definition of causality

: the relationship between cause and effect

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Comments on causality

What made you want to look up causality? Please tell us where you read or heard it (including the quote, if possible).


to make a temporary encampment

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