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gene therapy

noun

: the insertion of usually genetically altered genes into cells especially to replace defective genes in the treatment of genetic disorders or to provide a specialized disease-fighting function
gene therapist noun

Examples of gene therapy in a Sentence

advances in the science of gene therapy
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The gene therapy involves removing the patient’s stem cells, sending them to a lab at Great Ormond Street Hospital (GOSH) in London for modification, and replacing the faulty gene by re-injecting the modified cells. Vanessa Etienne, PEOPLE, 26 Nov. 2025 The boy received the gene therapy in February 2025. Mrigakshi Dixit, Interesting Engineering, 24 Nov. 2025 This isn’t the first time an experimental gene therapy has proved successful at driving down cholesterol in early studies. Erika Edwards, NBC news, 8 Nov. 2025 In the trial, 15 people received the innovative gene therapy. Alice Park, Time, 8 Nov. 2025 See All Example Sentences for gene therapy

Word History

First Known Use

1970, in the meaning defined above

Time Traveler
The first known use of gene therapy was in 1970

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Cite this Entry

“Gene therapy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gene%20therapy. Accessed 4 Dec. 2025.

Kids Definition

gene therapy

noun
: the insertion of a functioning gene into cells especially to replace a defective gene in the treatment of genetic disorders

Medical Definition

gene therapy

noun
: the insertion of usually genetically altered genes into cells especially to replace defective genes in the treatment of genetic disorders or to provide a specialized disease-fighting function (as the destruction of tumor cells)
gene therapist noun

More from Merriam-Webster on gene therapy

Last Updated: - Updated example sentences
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