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(tri-so-my) 3 syllables

Definition

noun. a genetic disorder in which a person has three copies of a chromosome instead of two.

Example Sentence

Trisomy 21 is more commonly known as Down syndrome.

More Example Sentences

Genetic testing can help identify trisomy conditions before birth.

Synonyms

chromosomal disorder; genetic anomaly; chromosomal aberration

Antonyms

disomy; normal karyotype; euploidy

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trisomy
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