Dictionary.com

achalasia

[ ak-uh-ley-zhuh, -zhee-uh, -zee-uh ]
/ ˌæk əˈleɪ ʒə, -ʒi ə, -zi ə /
Save This Word!

noun Medicine/Medical.

inability of a circular muscle, especially of the esophagus or rectum, to relax, resulting in widening of the structure above the muscular constriction.

QUIZZES

QUIZ YOURSELF ON “THEIR,” “THERE,” AND “THEY’RE”

Are you aware how often people swap around “their,” “there,” and “they’re”? Prove you have more than a fair grasp over these commonly confused words.
Question 1 of 7
Which one of these commonly confused words can act as an adverb or a pronoun?

Origin of achalasia

1910–15; a-6 + Greek chálas(is) (chala- (stem of chalân to loosen) + -sis-sis) + -ia
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for achalasia

achalasia
/ (ˌækəˈleɪzɪə) /

noun

pathol failure of the cardiac sphincter of the oesophagus to relax, resulting in difficulty in swallowing

Word Origin for achalasia

New Latin, from a- 1 + Greek chalasis relaxation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for achalasia

achalasia
[ ăk′ə-lāzhə ]

n.

The failure of a ring of muscle fibers, such as a sphincter, to relax.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
See Today's Synonym