achalasia

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noun acha·la·sia \ˌā-kə-ˈlā-zh(ē-)ə\

Definition of achalasia

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

Origin and Etymology of achalasia

New Latin, from a- + Greek chalasis slackening + New Latin -ia


First Known Use: 1914


Medical Dictionary

achalasia

play
noun acha·la·sia \ˌā-kə-ˈlā-zh(ē-)ə\

Medical Definition of achalasia

  1. :  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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