di·​la·​ta·​tion | \ ˌdi-lə-ˈtā-shən How to pronounce dilatation (audio) , ˌdī- \

Definition of dilatation

1 : amplification in writing or speech
2a : the condition of being stretched beyond normal dimensions especially as a result of overwork, disease, or abnormal relaxation dilatation of the heart dilatation of the stomach
3 : the action of expanding : the state of being expanded
4 : a dilated part or formation

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Other Words from dilatation

dilatational \ ˌdi-​lə-​ˈtā-​shnəl How to pronounce dilatation (audio) , -​shə-​nᵊl , ˌdī-​ \ adjective

Examples of dilatation in a Sentence

Recent Examples on the Web In Arkansas, dilatation and evacuation was the only method used to end pregnancies after 12 weeks, according to the Arkansas Department of Health. Neal Earley, Arkansas Online, "Laws on abortion again put on hold in Arkansas," 23 Dec. 2020 Poppy had gastric dilatation volvulus (GDV), more commonly known as bloat. Kim Campbell Thornton, sacbee, "Saved by junk food? That seems to be the case with bloated dog," 21 Mar. 2018 An enlarged stomach accompanied by drooling, panting and retching without bringing anything up is a sign of gastric dilatation volvulus, commonly known as bloat and often seen in deep-chested dogs. Kim Campbell Thornton, sacbee, "What to know in case of pet trauma," 8 Dec. 2017

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

14th century, in the meaning defined at sense 1

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Time Traveler for dilatation

Time Traveler

The first known use of dilatation was in the 14th century

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Cite this Entry

“Dilatation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dilatation. Accessed 6 May. 2021.

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More Definitions for dilatation


di·​la·​ta·​tion | \ ˌdil-ə-ˈtā-shən How to pronounce dilatation (audio) , ˌdī-lə- How to pronounce dilatation (audio) \

Medical Definition of dilatation

1 : the condition of being stretched beyond normal dimensions especially as a result of overwork or disease or of abnormal relaxation dilatation of the heart dilatation of the stomach

More from Merriam-Webster on dilatation

Thesaurus: All synonyms and antonyms for dilatation

Britannica.com: Encyclopedia article about dilatation

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