trisomy 21

tri·​so·​my 21 | \ ˈtrī-ˌsō-mē-ˌtwen-tē-ˈwən How to pronounce trisomy 21 (audio) \

Definition of trisomy 21

Examples of trisomy 21 in a Sentence

Recent Examples on the Web For example, having three copies of chromosome 21 (trisomy 21) is of clear clinical interest, because that leads to Down syndrome. Quanta Magazine, 8 Sep. 2021 In those with trisomy 21, the individual possesses a full extra copy of the chromosome. Cnn Editorial Research, CNN, 28 May 2021 The aim of the series, Grevenitis told me, is to demystify disability by compiling a full portrait of life with trisomy 21. Eren Orbey, The New Yorker, 18 Aug. 2020 Doctors commonly screen for Down syndrome (trisomy 21), Edwards syndrome (trisomy 18) and Patau syndrome (trisomy 13) during this test. Emily Mullin, New York Times, 17 Apr. 2020 The following week, the results came back positive for trisomy 21, the most common type of Down Syndrome. Kate Branch, Vogue, 9 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'trisomy 21.' 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 trisomy 21

1961, in the meaning defined above

History and Etymology for trisomy 21

from the occurrence of trisomy in chromosome 21 of persons with Down syndrome

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The first known use of trisomy 21 was in 1961

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Last Updated

17 Sep 2021

Cite this Entry

“Trisomy 21.” Dictionary, Merriam-Webster, Accessed 27 Oct. 2021.

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More Definitions for trisomy 21

trisomy 21

\ -ˌtwent-ē-ˈwən How to pronounce trisomy 21 (audio) \

Medical Definition of trisomy 21

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