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trisomy

[ trahy-soh-mee ]

noun

, Pathology.
  1. an abnormality characterized by the presence of an additional chromosome to the normal diploid number.


trisomy

/ traɪˈsəʊmɪk; ˈtraɪsəʊmɪ /

noun

  1. the condition of having one chromosome of the set represented three times in an otherwise diploid organism, cell, etc. Trisomy of chromosome 21 results in Down's syndrome
“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


trisomy

/ trī-sōmē,trīsō′- /

  1. The condition of having three copies of a given chromosome in each body cell rather than the normal number of two.


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Derived Forms

  • trisomic, adjective
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Word History and Origins

Origin of trisomy1

First recorded in 1925–30; tri- + -some 3 + -y 3
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Word History and Origins

Origin of trisomy1

C20: from tri- + ( chromo ) som ( e ) + -y ³
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Example Sentences

In the eyes of many medical professionals, a child with Trisomy 18 is doomed.

Most prominent in all of the literature: Trisomy 18 is often fatal.

Born with the excruciating genetic disorder Trisomy 18, Bella lives with heartbreakingly precarious health.

When we are able to pause for a time, Jeff and I read about Trisomy 18.

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trisomictrisomy 13