acha·​la·​sia | \ ˌā-kə-ˈlā-zh(ē-)ə How to pronounce achalasia (audio) \

Definition of achalasia

: failure of a ring of muscle (such as the anal sphincter or one of the esophagus) to relax

Examples of achalasia in a Sentence

Recent Examples on the Web After Lorraine passed away in May 2018 at age 73, after close to a decade with achalasia, a condition that closes off the esophagus, Chuck set to work living out her wishes. Heidi Stevens,, "Column: Before she died, his wife planned out her memorial tour. Now he’s following it to a T — college bars and all," 9 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'achalasia.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of achalasia

1914, in the meaning defined above

History and Etymology for achalasia

a- entry 2 + Greek chálasis "loosening, relaxation" (from chaláō, chalân "to loosen" —of obscure origin— + -sis -sis) + -ia entry 1

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Time Traveler for achalasia

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The first known use of achalasia was in 1914

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Cite this Entry

“Achalasia.” Dictionary, Merriam-Webster, Accessed 19 Sep. 2020.

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More Definitions for achalasia


acha·​la·​sia | \ ˌā-kə-ˈlā-zh(ē-)ə How to pronounce achalasia (audio) \

Medical Definition of achalasia

: failure of a ring of muscle (as a sphincter) to relax achalasia of the esophagus achalasia of the anal sphincter — compare cardiospasm

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